Plugin Store

Finds potentially duplicated Individual records by comparing the Names and key Events of selected Individuals and their immediate Relations.

See the Help & Advice for details.

For further support please post in the Family Historian User Group forums or Family Historian at Groups.io email where the plugin author will answer your questions which can be supplemented with screenshots if necessary.

Download Find Duplicate Individuals V3.9

• Family Historian Version(s): V5 V6 V7
• Plugin Type: Standard
• Written by Mike Tate
• View Source Code
• Downloaded 5,565 times
• See Help page for more information
• Updated 25 Feb 2026

Version History

• V3.9: Library v4.1; Check for Updates button; Centre window on FH window; Exclude Standalone GEDCOM Files;
• V3.8: Updated library functions; Option to boost matching BMD event scores;
  Add GEDCOM 5.5.1 FONE & ROMN to NAME & PLAC; FH V7 Lua 3.5 IUP 3.28 compatible;
• V3.7: Fixes issues with duplicate close relatives, missing Update date, and ± character;
• V3.6: Supports FH V6 IUP 3.11.2 with Unicode and new Soundex coding;
• V3.5: New GUI library and F1 key Help for current tab.
• V3.4: Omit Non-Duplicates tab allows multiple item selection, plus other user interface updates, and some problem fixes.
• V3.3: Progress messages if loading large family Relation Pools.
• V3.2: Considers Cremation events. No longer forces Progress Bar into focus.
• V3.1: Now assesses ALL instances of immediate Relations and ALL instances of the key Events.
• V3.0: First published Plugin Store version.
• V2.x: Omit Non-Duplicates and Set Preferences tabs added.
• V1.x: Proof of concept, work in progress, version in FHUG only.