One of the research strategies that I use when I have trouble researching my direct line of ancestors is to start researching collateral lines. I have been successful in the past finding the maiden names of mothers, but not this time. I had researched my ancestor, Valentine Graf, and did not find his mother's maiden name. Next, I went to Valentine's brothers and sisters. I was hopeful his oldest sister, Caroline, would provide the clues I needed. Although her records didn't give me what I was looking for, I still found some interesting records for Caroline.
Caspar and Mary Graf's first born, Caroline Graf, married Charles White 21 March 1871 in Miami County, Indiana. There marriage record is below: