Re: oldenburg from east germany lived in mi/

I think these are my great great grandparents!The dates I have are: John Oldenburg b. 1855 or 1856 in Germany.d. 1934 in Kalamazoo Co., Michigan (I think in Schoolcraft).buried in Vicksburg Cemetery.Mary Sharping b. 28 June 1863 in Germany. d. 11 February 1931, again in Schoolcraft, Kalamazoo Co., MI. Also buried in same cemetery.Father: John Sharping. I have only Gertie and Mabel as children, I don't know any others but I'm a descendant through Mabel and Gertie died at age 9.I have most of Mabel's descendents' information if anyone wants to trade or fill in any blanks they have if I can help!