According to "Gebhart, Gephart and Related Families,1609--1996", by Julia Shupert Hagwood, the parents of Peter were John Gebhart and Catharine Kemp.John was born about 1771 in Bethel Twp., Berks County, PA and died October, 1836 in Madison Twp.,Butler County, OH. Catharine was born about 1775, place unknown. She died April 1, 1849 in Madison Twp., Butler Co., OH.
The book states that Peter was born Nov. 29, 1800, in Tulpehocken Twp., Berks Co., PA., and he married Sarah Elizabeth Selby on Jan. 9, 1823.He died on Apr. 13, 1891 at Poastown, Butler County, OH.
There is considerably more information in the book on this family group.You can email me at Tobishoda@aol.com for further information, if you would like to.