Career
Marshall was seriously injured and his riding mechanic, brother Paul Marshall, was killed in the 1930 Industry 500. He returned to the race in 1947. The 17 years between starts is a record he shares with Roland Free who also competed in only the 1930 and 1947 races.
Marshall also failed to qualify for the 1950.
Cy Marshall is survived by three children: Cy Marshall, Junior., Gary Marshall, and Carolyn Marshall. Cy Marshall, Junior. and Gary Marshall reside in Florida.
Carolyn Marshall resides in Indiana.