This is not my Tompkins family, but I did check some census information: 1880 Chicago Daniel Tompkins, age 46, born PA, RR engineer Arvilla, age 39, born PA George D., age 19, born PA, brush maker Fredrick, age 12, born Illinois Debra T., age 65, mother, born PA
1870 Chicago George Tompkins, age 55, born PA, bridge builder Deborah, age 54, born PA D. D., age 34, engineer RR, born NY Arvitta, age 30, born PA George, age 9, born PA Fred, age 3, born Ill
The 1900 census says that Daniel was born July 1835 in NY, that he was a special policeman, and that Arvilla was born Feb 1840 in PA.Arvilla was still living (alone) in the census of 1930 in her own home as a 90-year-old widow.
In the 1920 census (Chicago) in the household of Fred and Anna (both age 52) were: Daniel D., age 32 John J., age 29, engineer Katharyn, age 28 George, age 7 Dorothea, age 1 2/12 Fred was listed as a teamster, born Illinois; Anna born Illinois, her father b. northern Ireland, mother Scotland. They also had several lodgers in the home and Anna was listed as a "landlady."