I check the FTM and find a Thomas Curtis in Thomas A. Curtis found in: Census Microfilm Records: Illinois, 1900 Lived in: 3 Ward Jacksonville, Morgan County, Illinois Series: T623 Microfilm: 331 Book: 2 Page: 208 Curtis, Thomas head w m Sept 1854 46 M 23 England, England, England 1873 came to the USA Grocer, Sarah A, wife Nov, 1852 47 M 23 4-2 England Myrtle C. daughter Sept 1881 18, Illinois Charles A. son ?? 1882 Illinois I hope that helps.