I am a direct descendant of a Conver from Hatfield Twp, Montgomery Co, PA.It is a difficult line to follow.There was a Peter Conver listed in the 1880 census, 42, widowed; farmer. In the same family visit there is listed: Susan 14, daughter, single, attended school; Mary A 12, daughter, single, attended school; Lizzie 9, daughter, single, attended school; Milton 3, son, single; Lizzie Wismer 23, servant, keeping house.
In 1870 there is listed in Franconia Twp a Peter KUMFORT 33, stone mason.In the same family visit: Elizabeth 29, keeping house; Susan 4; Mary 2; Jonas Moyer 23, works for boot manufacturer.
At least one of the databases I've found on-line shows Peter B Conver 1837 - 1894 married Elizabeth B Wismer b 1857. This appears to be the same Lizzie Wismer who was serving in the household in 1880.