Evelynn Johnson | St. Louis Public Radio

Evelynn Johnson

Evelynn Johnson, second from left, and her family meet with genealogist Kenyatta Berry, second from right, at Union Station in St. Louis during filming for PBS' 'Genealogy Roadshow.' Johnson's story will be shared in the show's Feb. 10, 2015, episode.
Courtesy of Jason Winkeler / PBS

When PBS’ “Genealogy Roadshow” asked for queries from St. Louis residents last year, Evelynn Johnson gave them her great-grandfather's name.

“I was asking my mom if were kin to another family that shared our last name,” Johnson told “St. Louis on the Air” host Don Marsh on Thursday. “She said ‘Well, this is your great-grandfather’s name. See if they know him.’”