After he graduated from Bellingham High in 1943, Marshall signed with the
Seattle Rainiers of the
Pacific Coast League (PCL), and he made his professional debut as a relief pitcher. He returned to Seattle in 1944, but the Rainiers optioned him to the
Memphis Chickasaws of the
Southern Association. After the 1944 season, the Rainiers traded Marshall to the
New York Yankees for
Johnny Babich and Dick Hearn. It was his first
game started at the major league level. He had a 3–4 record and a 5.33
earned run average (ERA) for the Yankees in 1946. The Yankees assigned Marshall to Kansas City in 1947 and in 1948. He was traded to the
Newark Bears of the
Class AAA International League in May 1948 for
Don Johnson. He made one appearance for the Yankees in 1948; he pitched one inning and
walked three batters. Marshall spent the entire 1949 season with the Yankees. He had a 3–0 record and a 5.11 ERA in 1949. The Yankees won the
1949 World Series; though he did not appear in the series, he received a
World Series ring. On May 15, 1950, the
St. Louis Browns purchased Marshall from the Yankees. He had a 1–3 record with a 7.88 ERA for the Browns in 1950. After the 1950 season, Marshall passed a physical examination by the
United States Army. Anticipating that he would be drafted, the Browns released him to the
Toronto Maple Leafs of the International League. He was drafted, and the Army stationed him at
Fort Lewis in
Tacoma, Washington, before he was sent overseas to
Austria. The
Baltimore Orioles of the
International League purchased Marshall on a 30-day trial basis, but returned him to the Browns. In June 1953, he was released by the Browns and he signed with the
Hollywood Stars of the PCL. He was released by Hollywood and signed with the
Vancouver Mounties of the
Western International League. In his second appearance for Vancouver, Marshall threw a no-hitter, though he walked nine batters in the game. After the 1953 season, Marshall was involved in a car accident in Bellingham where the car collided with a telephone pole, killing the driver of the car. Marshall was hospitalized in serious condition. He broke his left leg and had hand and wrist injuries. He decided to retire from baseball following the accident. He also had four
saves. but according to his daughter, he came to appreciate it later in his life. After the 1946 season, movie studio
Metro-Goldwyn-Mayer offered Marshall a contract for $250 per week ($ in current dollar terms) for 50 weeks and options for six years at up to $1,200 per week ($ in current dollar terms). He declined the offer, as he wanted to continue his baseball career. ==Personal life==