Carroll filled his draft registration card for World War I while living in Southbridge (signed June 5, 1917). He is described as being medium height, medium build, with light blue eyes and dark brown hair. He is listed as being a tool maker at the time, working for Optical Speciality Company in Southbridge. He is still single at this time.

He is shown as a boarder in the 1920 census for Southbridge (done January 19, 1920), although his last name is mis-spelled as Andrew. Here he is listed as a Die Maker for an Optical company. He is still single at this time.

The family (including two sons) were still residing in Southbridge as of the 1940 census.