The vast majority of the time, this specific phrasing refers to the Tabletop Roleplaying Game (TTRPG) supplement.
Here is a solid guide to the World of Darkness: Werewolf: The Apocalypse sourcebook, Kinfolk: Unsung Heroes.
Most biography templates ask for birth dates, marriage certificates, and employment history. The "Unsung Heroes" template asks different questions. Look for prompts like these:
One user of the PDF, a family historian named Carla from Georgia, shared: “I always knew my grandfather worked at the post office. But the PDF asked, ‘What did he do after work?’ That’s when my aunt told me he tutored every Black child in the neighborhood for free in his basement. No plaque. No pay. That’s unsung.”
Teachers are replacing standard genealogy assignments with the "Unsung Heroes" model. Students must identify a relative who performed unrecognized civic or domestic labor and produce a 5-page PDF. This teaches research skills while restoring family dignity.
For years, Werewolf: The Apocalypse suffered from a "Garou-centric" viewpoint where Kinfolk were marginalized.