diff --git a/TODO.md b/TODO.md
index df74355c..acbe68bc 100644
--- a/TODO.md
+++ b/TODO.md
@@ -60,12 +60,16 @@ This is a list of tasks to be completed before the next event/show/conference.
 
 ## Core Module Improvements
 
-- [ ] **Person Management:**
-    - [ ] Create dedicated page/form for creating/editing person records.
-    - [ ] Finalize Person-User linking.
-- [ ] **Address & Contact Management:**
-    - [ ] Implement full V3 CRUD UI (currently placeholders).
-    - [ ] Create dynamic detail routes.
+- [x] **Person Management:**
+    - [x] Create dedicated page/form for creating/editing person records. (Standardized 2026-01-15)
+    - [x] Finalize Person-User linking. (UI implemented in [person_id]/+page.svelte)
+- [x] **Address & Contact Management:**
+    - [x] Implement full V3 CRUD UI (Standardized 2026-01-15).
+    - [x] Create dynamic detail routes.
+- [x] **Logic Consolidation:**
+    - [x] Merged legacy logic files into modern `ae_core__*` counterparts.
+    - [x] Renamed Activity Log to `ae_core__activity_log.ts` for consistency.
+    - [x] Unified Person-User logic and ensured correct Triple-ID / V3 helper usage.
 
 ---
 
diff --git a/src/lib/ae_core/core__activity_log.ts b/src/lib/ae_core/ae_core__activity_log.ts
similarity index 99%
rename from src/lib/ae_core/core__activity_log.ts
rename to src/lib/ae_core/ae_core__activity_log.ts
index 67868fcb..4211a6aa 100644
--- a/src/lib/ae_core/core__activity_log.ts
+++ b/src/lib/ae_core/ae_core__activity_log.ts
@@ -101,7 +101,7 @@ export async function create_ae_obj__activity_log({
 
     if (!account_id) {
         console.log(`ERROR: Core - Activity Log - account_id required to create`);
-        return false;
+        return null;
     }
 
     ae_promises.create__activity_log = await api.create_ae_obj_v3({
diff --git a/src/lib/ae_core/ae_core__person.ts b/src/lib/ae_core/ae_core__person.ts
index f8176ad8..cd1d5606 100644
--- a/src/lib/ae_core/ae_core__person.ts
+++ b/src/lib/ae_core/ae_core__person.ts
@@ -65,6 +65,7 @@ export async function load_ae_obj_li__person({
     api_cfg,
     for_obj_type = 'account',
     for_obj_id,
+    qry_email = null,
     qry_user_id = null,
     enabled = 'enabled',
     hidden = 'not_hidden',
@@ -84,6 +85,7 @@ export async function load_ae_obj_li__person({
     api_cfg: any;
     for_obj_type?: string;
     for_obj_id?: string;
+    qry_email?: string | null;
     qry_user_id?: string | null;
     enabled?: 'enabled' | 'all' | 'not_enabled';
     hidden?: 'hidden' | 'all' | 'not_hidden';
@@ -101,11 +103,19 @@ export async function load_ae_obj_li__person({
 
     let promise;
 
-    if (qry_user_id) {
+    if (qry_user_id || qry_email) {
         const search_query: any = {
-            and: [{ field: 'user_id_random', op: 'eq', value: qry_user_id }]
+            and: []
         };
 
+        if (qry_user_id) {
+            search_query.and.push({ field: 'user_id_random', op: 'eq', value: qry_user_id });
+        }
+
+        if (qry_email) {
+            search_query.and.push({ field: 'primary_email', op: 'eq', value: qry_email });
+        }
+
         if (for_obj_id) {
             search_query.and.push({
                 field: `${for_obj_type}_id_random`,
@@ -352,7 +362,18 @@ const properties_to_save = [
     'contact_id',
     'contact_id_random',
     'contact_name',
-    'contact_email'
+    'contact_email',
+    'contact_cc_email',
+    'contact_phone_mobile',
+    'contact_phone_home',
+    'contact_phone_office',
+    'contact_phone_land',
+    'contact_phone_fax',
+    'contact_phone_other',
+    'address_id',
+    'address_id_random',
+    'address_city',
+    'address_country_alpha_2_code'
 ];
 
 async function _process_generic_props<T extends Record<string, any>>({
diff --git a/src/lib/ae_core/ae_core__user.ts b/src/lib/ae_core/ae_core__user.ts
index d4c2d6b0..bf17061d 100644
--- a/src/lib/ae_core/ae_core__user.ts
+++ b/src/lib/ae_core/ae_core__user.ts
@@ -253,6 +253,322 @@ export async function delete_ae_obj_id__user({
     return result;
 }
 
+/*
+ * *** LEGACY AUTHENTICATION HEADER LOGIC ***
+ *
+ * The functions in this section interact with legacy Aether API authentication endpoints
+ * (e.g., /user/authenticate, /user/lookup_email).
+ *
+ * Unlike V3 endpoints which handle context automatically or via standard headers,
+ * these legacy endpoints have specific requirements:
+ *
+ * 1. They often require the `x-account-id` header to be explicitly set to the target
+ *    account ID to find the user within that specific account context.
+ * 2. The standard API wrapper logic might strip `x-account-id` if `x-no-account-id`
+ *    is present (Bootstrap Paradox logic). We must explicitly remove `x-no-account-id`
+ *    and set `x-account-id` to ensure the request is routed correctly.
+ * 3. Some endpoints accept `account_id` as a query parameter, while others (like email sending)
+ *    may crash (500 Error) if unexpected parameters are passed.
+ */
+
+// Updated 2025-04-04
+// This function handles username/password authentication.
+// It explicitly sets the x-account-id header to ensure the user is looked up in the correct account.
+export async function auth_ae_obj__username_password({
+    api_cfg,
+    account_id,
+    null_account_id = false,
+    username,
+    password,
+    params = {},
+    try_cache = true,
+    log_lvl = 0
+}: {
+    api_cfg: any;
+    account_id: string;
+    null_account_id?: boolean;
+    username: string;
+    password: string;
+    params?: key_val;
+    try_cache?: boolean;
+    log_lvl?: number;
+}) {
+    if (log_lvl) {
+        console.log(
+            `*** auth_ae_obj__username_password() *** account_id=${account_id} username=${username} password=${password}`
+        );
+    }
+
+    const endpoint = '/user/authenticate';
+
+    // Prepare API config with correct headers to override global guest settings
+    const use_api_cfg = { ...api_cfg, headers: { ...api_cfg.headers } };
+    if (account_id) {
+        use_api_cfg.headers['x-account-id'] = account_id;
+        delete use_api_cfg.headers['x-no-account-id'];
+        params['account_id'] = account_id;
+    }
+
+    if (null_account_id) {
+        params['null_account_id'] = true;
+    }
+    params['username'] = username; // Required
+    params['password'] = password; // Required
+    params['inc_jwt'] = true; // Request a JWT in the response
+    if (log_lvl > 1) {
+        console.log(`auth_ae_obj__username_password() - params:`, params);
+    }
+
+    ae_promises.auth__username_password = await api
+        .get_object({
+            api_cfg: use_api_cfg,
+            endpoint: endpoint,
+            params: params,
+            // data: {},
+            log_lvl: log_lvl
+        })
+        .then(async function (user_obj_get_result) {
+            if (user_obj_get_result) {
+                return user_obj_get_result;
+            } else {
+                console.log('No results returned.');
+                return null;
+            }
+        })
+        .catch(function (error: any) {
+            console.log('No results returned or failed.', error);
+        });
+
+    if (log_lvl) {
+        console.log('ae_promises.auth__username_password:', ae_promises.auth__username_password);
+    }
+    return ae_promises.auth__username_password;
+}
+
+// Updated 2025-04-04
+// This function handles authentication using a User ID and a one-time auth key.
+export async function auth_ae_obj__user_id_user_auth_key({
+    api_cfg,
+    account_id,
+    user_id,
+    user_auth_key,
+    params = {},
+    try_cache = true,
+    log_lvl = 0
+}: {
+    api_cfg: any;
+    account_id: string;
+    user_id: string;
+    user_auth_key: string;
+    params?: key_val;
+    try_cache?: boolean;
+    log_lvl?: number;
+}) {
+    if (log_lvl) {
+        console.log(
+            `*** auth_ae_obj__user_id_user_auth_key() *** account_id=${account_id} user_id=${user_id}`
+        );
+    }
+
+    const endpoint = '/user/authenticate';
+
+    // Prepare API config with correct headers to override global guest settings
+    const use_api_cfg = { ...api_cfg, headers: { ...api_cfg.headers } };
+    if (account_id) {
+        use_api_cfg.headers['x-account-id'] = account_id;
+        delete use_api_cfg.headers['x-no-account-id'];
+        params['account_id'] = account_id;
+    }
+
+    params['user_id'] = user_id; // Required
+    params['auth_key'] = user_auth_key; // Required
+    params['inc_jwt'] = true; // Request a JWT in the response
+    if (log_lvl > 1) {
+        console.log(`auth_ae_obj__user_id_user_auth_key() - params:`, params);
+    }
+
+    ae_promises.auth__user_id_user_key = await api
+        .get_object({
+            api_cfg: use_api_cfg,
+            endpoint: endpoint,
+            params: params,
+            log_lvl: log_lvl
+        })
+        .then(async function (user_obj_get_result) {
+            if (user_obj_get_result) {
+                return user_obj_get_result;
+            } else {
+                console.log('No results returned.');
+                return null;
+            }
+        })
+        .catch(function (error: any) {
+            console.log('No results returned or failed.', error);
+        });
+
+    if (log_lvl) {
+        console.log('ae_promises.auth__user_id_user_key:', ae_promises.auth__user_id_user_key);
+    }
+    return ae_promises.auth__user_id_user_key;
+}
+
+// Send an email to the user with a new one time use authentication key.
+// Updated 2025-04-08
+// NOTE: This legacy endpoint is sensitive to extra query parameters and will 500 if account_id is passed in the URL.
+export async function send_email_auth_ae_obj__user_id({
+    api_cfg,
+    account_id,
+    user_id,
+    base_url,
+    key_param_name = 'user_key', // API defaults to 'auth_key'
+    params = {},
+    log_lvl = 0
+}: {
+    api_cfg: any;
+    account_id: string;
+    user_id: string;
+    base_url?: string;
+    key_param_name?: string;
+    params?: key_val;
+    log_lvl?: number;
+}) {
+    if (log_lvl) {
+        console.log(
+            `*** send_email_auth_ae_obj__user_id() *** account_id=${account_id} user_id=${user_id}`
+        );
+    }
+
+    const email_auth_key_endpoint = `/user/${user_id}/email_auth_key_url`;
+    params = {
+        root_url: base_url,
+        key_param_name: key_param_name
+    };
+
+    // Prepare API config with correct headers
+    const use_api_cfg = { ...api_cfg, headers: { ...api_cfg.headers } };
+    if (account_id) {
+        use_api_cfg.headers['x-account-id'] = account_id;
+        delete use_api_cfg.headers['x-no-account-id'];
+        // WARNING: Do NOT add account_id to params here, as it causes a 500 error on the legacy backend.
+    }
+
+    ae_promises.auth_key__send_email = await api.get_object({
+        api_cfg: use_api_cfg,
+        endpoint: email_auth_key_endpoint,
+        params: params,
+        log_lvl: log_lvl
+    });
+
+    return ae_promises.auth_key__send_email;
+}
+
+// Look up user based on email address provided
+// Updated 2025-04-08
+export async function qry_ae_obj_li__user_email({
+    api_cfg,
+    account_id,
+    null_account_id = false,
+    email,
+    params = {},
+    try_cache = true,
+    log_lvl = 0
+}: {
+    api_cfg: any;
+    account_id: string;
+    null_account_id?: boolean;
+    email: string;
+    params?: key_val;
+    try_cache?: boolean;
+    log_lvl?: number;
+}) {
+    if (log_lvl) {
+        console.log(`*** qry_ae_obj_li__user_email() *** account_id=${account_id} email=${email}`);
+    }
+
+    const endpoint = '/user/lookup_email';
+
+    // Prepare API config with correct headers
+    const use_api_cfg = { ...api_cfg, headers: { ...api_cfg.headers } };
+    if (account_id) {
+        use_api_cfg.headers['x-account-id'] = account_id;
+        delete use_api_cfg.headers['x-no-account-id'];
+        params['account_id'] = account_id;
+    }
+
+    params['email'] = email; // Required
+    params['null_account_id'] = null_account_id || false;
+    
+    ae_promises.qry__user_email = await api
+        .get_object({
+            api_cfg: use_api_cfg,
+            endpoint: endpoint,
+            params: params,
+            log_lvl: log_lvl
+        })
+        .then(async function (user_obj_get_result) {
+            if (user_obj_get_result) {
+                return user_obj_get_result;
+            } else {
+                console.log('No results returned.');
+                return null;
+            }
+        })
+        .catch(function (error: any) {
+            console.log('No results returned or failed.', error);
+        });
+
+    return ae_promises.qry__user_email;
+}
+
+// Change user password
+// Updated 2025-04-11
+export async function auth_ae_obj__user_id_change_password({
+    api_cfg,
+    account_id,
+    user_id,
+    password,
+    params = {},
+    log_lvl = 0
+}: {
+    api_cfg: any;
+    account_id: string;
+    user_id: string;
+    password: string;
+    params?: key_val;
+    log_lvl?: number;
+}) {
+    if (log_lvl) {
+        console.log(
+            `*** auth_ae_obj__user_id_change_password() *** account_id=${account_id} user_id=${user_id}`
+        );
+    }
+
+    const endpoint = `/user/${user_id}/change_password`;
+
+    params['user_id'] = user_id; // Required
+    ae_promises.change_password__user_id = await api
+        .patch_object({
+            api_cfg: api_cfg,
+            endpoint: endpoint,
+            params: params,
+            data: { password: password },
+            log_lvl: log_lvl
+        })
+        .then(async function (change_password_result) {
+            if (change_password_result) {
+                return change_password_result;
+            } else {
+                console.log('No results returned.');
+                return null;
+            }
+        })
+        .catch(function (error: any) {
+            console.log('No results returned or failed.', error);
+        });
+
+    return ae_promises.change_password__user_id;
+}
+
 const properties_to_save = [
     'id',
     'user_id',
diff --git a/src/lib/ae_core/ae_core_functions.ts b/src/lib/ae_core/ae_core_functions.ts
index 63e0e70d..571534c8 100644
--- a/src/lib/ae_core/ae_core_functions.ts
+++ b/src/lib/ae_core/ae_core_functions.ts
@@ -7,8 +7,7 @@ import {
     load_ae_obj_li__activity_log,
     create_ae_obj__activity_log,
     update_ae_obj__activity_log
-    // db_save_ae_obj_li__activity_log
-} from '$lib/ae_core/core__activity_log';
+} from '$lib/ae_core/ae_core__activity_log';
 
 import {
     load_ae_obj_id__person,
@@ -16,7 +15,6 @@ import {
     create_ae_obj__person,
     delete_ae_obj_id__person,
     update_ae_obj__person
-    // db_save_ae_obj_li__person
 } from '$lib/ae_core/ae_core__person';
 
 import {
@@ -25,12 +23,7 @@ import {
     send_email_auth_ae_obj__user_id,
     qry_ae_obj_li__user_email,
     auth_ae_obj__user_id_change_password
-    // handle_load_ae_obj_id__user,
-    // handle_load_ae_obj_li__user,
-    // handle_create_ae_obj__user,
-    // handle_update_ae_obj__user,
-    // handle_db_save_ae_obj_li__user
-} from '$lib/ae_core/core__user';
+} from '$lib/ae_core/ae_core__user';
 
 import { generate_qr_code, js_generate_qr_code } from '$lib/ae_core/core__qr_code';
 
diff --git a/src/lib/ae_core/core__account.ts b/src/lib/ae_core/core__account.ts.legacy
similarity index 100%
rename from src/lib/ae_core/core__account.ts
rename to src/lib/ae_core/core__account.ts.legacy
diff --git a/src/lib/ae_core/core__crud_generic.ts b/src/lib/ae_core/core__crud_generic.ts
index 533dceab..f5846157 100644
--- a/src/lib/ae_core/core__crud_generic.ts
+++ b/src/lib/ae_core/core__crud_generic.ts
@@ -189,7 +189,7 @@ import { load_ae_obj_id__journal } from '$lib/ae_journals/ae_journals__journal';
 import { load_ae_obj_id__journal_entry } from '$lib/ae_journals/ae_journals__journal_entry';
 import { load_ae_obj_id__post } from '$lib/ae_posts/ae_posts__post';
 import { load_ae_obj_id__post_comment } from '$lib/ae_posts/ae_posts__post_comment';
-import { load_ae_obj_id__person } from '$lib/ae_core/core__person';
+import { load_ae_obj_id__person } from '$lib/ae_core/ae_core__person';
 
 export async function update_ae_obj_id_crud_v2({
     api_cfg,
diff --git a/src/lib/ae_core/core__person.ts b/src/lib/ae_core/core__person.ts.legacy
similarity index 100%
rename from src/lib/ae_core/core__person.ts
rename to src/lib/ae_core/core__person.ts.legacy
diff --git a/src/lib/ae_core/core__site.ts b/src/lib/ae_core/core__site.ts.legacy
similarity index 100%
rename from src/lib/ae_core/core__site.ts
rename to src/lib/ae_core/core__site.ts.legacy
diff --git a/src/lib/ae_core/core__user.ts b/src/lib/ae_core/core__user.ts.legacy
similarity index 100%
rename from src/lib/ae_core/core__user.ts
rename to src/lib/ae_core/core__user.ts.legacy
diff --git a/src/routes/core/activity_logs/+page.svelte b/src/routes/core/activity_logs/+page.svelte
index 7961adc8..d42c3c7a 100644
--- a/src/routes/core/activity_logs/+page.svelte
+++ b/src/routes/core/activity_logs/+page.svelte
@@ -1,7 +1,7 @@
 <script lang="ts">
     /** @type {import('./$types').PageData} */
     import { onMount } from 'svelte';
-    import { qry__activity_log } from '$lib/ae_core/core__activity_log';
+    import { qry__activity_log } from '$lib/ae_core/ae_core__activity_log';
     import { ae_api, ae_loc } from '$lib/stores/ae_stores';
     import { Search, History, Calendar, User, Tag, Activity } from 'lucide-svelte';
     import { ae_util } from '$lib/ae_utils/ae_utils';
diff --git a/src/routes/core/people/[person_id]/+page.svelte b/src/routes/core/people/[person_id]/+page.svelte
index b7211182..183d1874 100644
--- a/src/routes/core/people/[person_id]/+page.svelte
+++ b/src/routes/core/people/[person_id]/+page.svelte
@@ -33,7 +33,7 @@
     import { update_ae_obj__person } from '$lib/ae_core/ae_core__person';
     import { qry_ae_obj_li__event } from '$lib/ae_events/ae_events__event';
     import { qry__post } from '$lib/ae_posts/ae_posts__post';
-    import { qry__activity_log } from '$lib/ae_core/core__activity_log';
+    import { qry__activity_log } from '$lib/ae_core/ae_core__activity_log';
     import { Users, Link, Unlink, UserPlus, ShieldCheck, User, Calendar, MessageSquare, History, Activity, Edit, Eye } from 'lucide-svelte';
 
     interface Props {
diff --git a/src/routes/core/people/ae_comp__person_form.svelte b/src/routes/core/people/ae_comp__person_form.svelte
index d03d64f2..53799c9a 100644
--- a/src/routes/core/people/ae_comp__person_form.svelte
+++ b/src/routes/core/people/ae_comp__person_form.svelte
@@ -46,6 +46,7 @@
 
         // Clean payload: Map fields and handle optional values
         const payload: any = {
+            prefix: formData.prefix.trim() || null,
             given_name: formData.given_name.trim(),
             family_name: formData.family_name.trim() || null,
             middle_name: formData.middle_name.trim() || null,
diff --git a/src/routes/idaa/(idaa)/video_conferences/+page.svelte b/src/routes/idaa/(idaa)/video_conferences/+page.svelte
index 48930a1e..a69b113d 100644
--- a/src/routes/idaa/(idaa)/video_conferences/+page.svelte
+++ b/src/routes/idaa/(idaa)/video_conferences/+page.svelte
@@ -3,7 +3,10 @@
 	import { page } from '$app/stores';
 	import { ae_loc, ae_api } from '$lib/stores/ae_stores';
 	import MyClipboard from '$lib/app_components/e_app_clipboard.svelte';
-	import { create_ae_obj__activity_log, update_ae_obj__activity_log } from '$lib/ae_core/core__activity_log';
+  import {
+    create_ae_obj__activity_log,
+    update_ae_obj__activity_log
+  } from "$lib/ae_core/ae_core__activity_log";
 
 	let log_lvl: number = $state(0);