[1] Among his best known songs were "Mississippi Mud" (1927, made popular by Bing Crosby), "Crosstown" (1940, co-written with John Redmond), and "The Gaucho Serenade" (title track of the soundtrack to the Gene Autry 1940 movie Gaucho Serenade).
[2] In October of 1918, he was drafted despite this, but luckily the armistice was signed 11/11/18 and Cavanaugh was discharged honorably in mid-December in the general demobilization.
In the 1940 US census, the family had moved to 316 East 184th Street in the Bronx, but Cavanaugh, despite having written successful songs for seven years by that time, still listed his occupation as "chauffeur".
Finally, by 1942, when he registered for the "Old Man Draft" at the age of 50, he listed his employer as ASCAP, 30 Rockefeller Center, NYC, and he was already living in the Bronx (where he will live until his death in 1967): he had made the transition to become a professional songwriter.
[4] (Note: listing is incomplete) This article about an American songwriter is a stub.