"[2] On September 23, 1882, the Pittsburgh Alleghenys, then belonging to the American Association, gave Seymour a trial in what was to be his only major league game.

He lived blocks from the original Exposition Park and played its last game there, before it was torn down after only one season due to a fire and flooding from the nearby Allegheny River.

Following his baseball years, he worked as a bartender and served on both the local police force and fire department (as a Horseman with Engine Co. 1).

The staff of the Pittsburgh Post ran an obituary praising his contributions to local baseball and stating that his death would be deeply regretted by all who knew him.

"[3] He left behind a wife, Mary (née Dooney), and three young daughters—Anna, Isla, and Catherine—who continued to use his baseball name "Seymour" as their own.