My grandfather's long-lost sister Laura Hamelin (b. 1851 in Clinton County NY) turned up recently in the 1880 census, married to an Albert Rood of Ophir, LaSalle County, Ill. They had one child at the time, Lucy (b. 1877), but could've had a son who would have been marrying age by 1897. Your headline mentioned Illinois. You now know everything that I do. A possible connection?