Hi Mary, there is a lot of info on the Treadway family that's available  A lot of them came through this part of Illinois during the 1860s and 70s. my Elizabeth is not the same as yours but if I run across anything for you I'll send it your way.   Lee Dear Lee: I am researching DeWitt TREADWAY, born in New York in 1820. He wound up in Cape Girardeau County, Missouri in the 1880's. I wonder if he came through Illinois? Can you tell me where I might find out? Thanks Dave Conley