No additional information as of yet. I did go to St Peters Lutheran cemetery in Oneida, NY and got pictures of the graves of Catherine [Mehrhof] and Pantaleon Schopp as well as Philip Mehrhof Sr. and his wife, Catharina. I can email them if you like.
I am esp interested in finding the parentage of Margaret Hare (b. 1844, Scotland), who married Philip Mehrhof Jr. (b. 1839). Also, her sister, Agnes (b. 1841, Scotland) married John Dimes (Luxemburg) and their daughter, Ella (b. 1862, NY) married Pantaleon's son, Charles (b. 1855).