To follow up on my previous post, now that I'm home.
57th FG flew their first Jug operational sortie on December 5, 1943 but this was not at group strength. The 57th flew it's last P40 mission January 22, 1944 and had a full compliment of Jugs that same day. This from "The Fabulous Fifty-Seventh Fighter Group of World War II" by Wayne S. Dodds.
79th flew thier first operational P47 sortie on March 7, 1944 (This from Don Woerpel's book "A Hostile Sky-The Mediterranean Airwar of the 79th Fighter Group"
350th FG got their Jugs in August 1944 and took them on Operations starting September 1, 1944. This from "350th Fighter Group-World War two-Data on Flight Operations" Put together by Hugh Dow, their historian and a 109 killer in a P39 with the 347th FS, 350th FG.