On March 5, 1945 — With war-time travel restrictions still in effect, the Dodgers open spring training at Bear Mountain, New York with 15 players in camp. Seven teams – the Browns, Tigers, Reds, Indians, Cubs, Pirates and White Sox – are training in Indiana, the most of any state. The Red Sox are at Tufts College in Massachusetts, while the Braves are prepping at the Choate School in Connecticut.
Sources –
Baseball Reference March 5
SABR Games Project
National Pastime March 5
Retro Sheet
Replay The Game