Did you ever find any other information after 1930?
James Alger graduated from Chetek High School in 1939 (or at least was in the Chetek Yearbook pictures in the class of 1939). He is also listed in the Chetek High Alumni Directory in 1952 with the address of 542 SW 12th Ave, Miami, FL; also in the 1967 Chetek High Alumni Directory with the address of 100 Teresa Lane, Merritt Island, FL.
I have not found him in 1940, or anywhere else until the SSDI-
James Elton Alger
Last Residence: 32168 New Smyrna Beach, Volusia, Florida
Born: 14 Sep 1921
Died: 30 Jun 2008
State (Year) SSN issued: Wisconsin (Before 1951)
I cannot find an obit. If you can, please post it.