Pierce Hall Devinney, son of Percifer D. Devinney and Rachel, was born in 1855 at New Brighton, Beaver County, Pennsylvania. He married Sarah Weaver on 14 May 1874 at Beaver Falls, Beaver County, Pennsylvania.
Pierce and Sarah had three children:
- Annie Elizabeth Devenny (1874-1945)
- George T. Devenny (1877-c1903)
- Frederick Percifer Devenny (1891-1970)
Pierce died on 19 Jan 1896. He was buried at Grove Cemetery, New Brighton, Beaver County, Pennsylvania.