In 1851 Thomas Anwyl (12) of Penegoes Montgomery was with his parents in Penrhos Mawr, Penegoes, Montgomeryshire.
In 1870 Thomas Anwell (32) of Wales, farmer, and wife Ann (26) of Wales, keeping house, were living in Columbus City, Louisa, Iowa, USA. Present were son Even (1) of Iowa, Elizabeth Anwyl (59) of Wales, grandmother (i.e. of Even), [brother-in-law] Evan Owen (55) of Wales, boarding, insane.
In 1880 Thomas Anwyl (41) of Wales, farmer, and wife Ann (36) of Wales, keeping house, were living in Columbus City, Louisa, IA, USA. Present were children (born in Iowa): Evan (11), at home, John (9), David (7), Winifred M. (4), William (10 months), [brother-in-law] Evan Owen (60) of Wales, at home.
In 1900 Thomas Anwyl (61) of Wales, farmer, and wife of 32 years Ann (56) of Wales, were living in Columbus Junction, Louisa, Iowa. Present was son Alfred S. (18) of Iowa, farm laborer. Thomas's sister Margaret Jones and her family were living nearby.
In 1910 Thomas Anwyl (71) of Wales, income, and wife of 42 years Anne (65) of Wales (mother of 6 children), were living Oregon Township, Washington, Iowa.