[3] By 1908, at the age of 23, he was playing third base for the Indianapolis ABCs.

He played most of his seasons for the ABCs, including a winter season with a mostly ABCs team that played for the Royal Poinciana Hotel in West Palm Beach, Florida.

After the ABCs, Allen played for a number of years for the French Lick Plutos and the Lincoln Giants.

After baseball, his World War II draft card shows he was working for Hook Drug Company at the corner of California and Market Street, and living in Indianapolis, Indiana.

It also lists his closest relative, likely his wife, as Jessie Allen.