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The game against the Cal Aggies was part of an "All-UC Doubleheader" that was held annually from 1948 to 1963. The other game of the double-header was California vs. UCLA. The games were always held at the home stadium of either Cal or UCLA.
The Marine Corps Recruit Depot (MCRD) in San Diego fielded a team that played against colleges and other military teams from 1922 to 1964.