I have a John J. Longcor. Son of Gabriel Dean Longcor and Phoebe Mizner. The birth date is the same, and his birthplace is listed as Milo, Township, Yates County, NY. His death place is listed as Salem, Oregeon. Given the rarity of this surname, it's probably the same man. My husbands grandfather was his brother Timothy Longcor. There were about 7 other brothers in this family, as well as sisters. The only child I have listed for John J. Longcor is Jasper Williard Longcor.
Vernie, in Michigan