Town[ship] 6 North Range 10 West,Madison County, Illinois, 11 Jan 1851, Family 163
George W. Long, age 50, Civil Engineer, b. New Hampshire
Maria N. Long, age 45, b. Maryland
Thomas S. Long, age 14, b. Maryland
Jesse W. Long, age 10, b. Illinois
Stephen H. Long, age 5, b. Illinois
Eliza Stuart, age 14, b. Illinois
[Note: the entry for Eliza apparently causes many websites to assume she is a daughter. Based on birth location and age clashing with son Thomas, probably not, more likely a servant. Not listed in household in 1860, nor is any further record of any such daughter found.]