Looking for info on family of Reuben Mason Keen and Veronica Alft. They were married in Grafton, Ozaukee Co. (at least I think it was that county then) in 1847. Reuben came to Grafton from Lewis Co., NY sometime in the 1830's. Veronica was born in Bonn Germany in 1825. The family left for Clinton Co. Michigan in the late 1860's or early 1870's.