Here's hoping someone's got something on this guy! Seeking anything on Sylvanus Caswell, born 1810 somewhere in New York. In 1830 he was living alone in Hinsdale, Cattaraugus County. Married German-born Catharine Shaler. Their children included Andrew (born 1840 in NY), Ellen, Maggie, Cyrus, Edward, and George. By 1850, the brood had moved to Winnebago Co., IL. Some of the children were born in IL. By 1870, Sylvanus, his wife, and four of the younger children were living in Tama County, IA. Son Andrew ended up in southeastern SD, where he and his brothers seem to have become responsible for most of the Caswell population that remains in the area. There are also unconfirmed ties to a bunch of Colorado Caswells. Our line came out of SD, through KS to OK. Can anybody help? I've hit a solid wall with Sylvanus. Kelly Caswell