I have only a little on one of these names but it might help. I have a Mary SCHINDLER b. 15 May 1850 in Big Spring, Seneca, Ohio; m. Adam John MARKLING/MERKLING Nov 1867 at St. Joseph. I also have Mary Ann MARKLING/MERKLING m. to a Henrich Schindler b. 21 Apr 1842 with two daughters - Josephine and Barbara