I'm not related to this family and don't know what he did for an occupation, but I did find this doing of search of his name:
1. The Daily Sun [Waukegan], September 20, 1920; p2 c 6:
Adoption Notice- State of Illinois, County of Lake, SS.- County Court of Lake County. In the matter of the petition of George W. Carr and Helen Taylor Carr, his wife, to adopt Roger Lee Hammond, No. 8966.
To Carl Hammond, Rose Hammond and to all whom it may concern:
Take notice that on the 4th day of September, A.D. 1920, a petition was filed by George Wallace Carr and Helen Taylor Carr, his wife, in the County Court of Lake County, Illinois, for the adoption of a child named Roger Lee Hammond and to change his name to that of Wallace Carr.
Now unless you appear within twenty days after the date of this notice and show cause against such application, the petition shall be taken as confessed and a decreee of adopton entered.
Dated, Waukegan, Illinois, September 20, A.D. 1920.
Lew A Hendee, Clerk
2040 Sept. 20.
I'm not even sure if this is the Wallace Carr you want