diff --git a/app/routers/event_exhibit_tracking.py b/app/routers/event_exhibit_tracking.py
index e040c6d..5c3953e 100644
--- a/app/routers/event_exhibit_tracking.py
+++ b/app/routers/event_exhibit_tracking.py
@@ -296,23 +296,31 @@ async def get_event_exhibit_obj_tracking_list(
 
                 if 'event_badge_country_subdivision_code' in data_dict:
                     data_dict['person_country_subdivision_code'] = data_dict.pop('event_badge_country_subdivision_code')
+                else: data_dict['person_country_subdivision_code'] = None
                 if 'event_badge_state_province_abb' in data_dict:
                     data_dict['person_state_province_abb'] = data_dict.pop('event_badge_state_province_abb')
+                else: data_dict['person_state_province_abb'] = None
                 if 'event_badge_state_province' in data_dict:
                     data_dict['person_state_province'] = data_dict.pop('event_badge_state_province')
+                else: data_dict['person_state_province'] = None
 
                 if 'event_badge_postal_code' in data_dict:
                     data_dict['person_postal_code'] = data_dict.pop('event_badge_postal_code')
+                else: data_dict['person_postal_code'] = None
 
                 if 'event_badge_country_alpha_2_code' in data_dict:
                     data_dict['person_country_alpha_2_code'] = data_dict.pop('event_badge_country_alpha_2_code')
+                else: data_dict['person_country_alpha_2_code'] = None
                 if 'event_badge_country' in data_dict:
                     data_dict['person_country'] = data_dict.pop('event_badge_country')
+                else: data_dict['person_country'] = None
 
                 if 'event_badge_location' in data_dict:
                     data_dict['person_location'] = data_dict.pop('event_badge_location')
+                else: data_dict['person_location'] = None
                 if 'event_badge_display_location' in data_dict:
                     data_dict['person_display_location'] = data_dict.pop('event_badge_display_location')
+                else: data_dict['person_display_location'] = None
 
                 data_dict_list_for_export.append(data_dict)
             else: