Then came three great years as a halfback for the USC Trojans, 1924 to 1926. In 1925, he set a school record by scoring 19 touchdowns, which led the nation that year, tying Peggy Flournoy's mark. The record lasted 43 years, broken in 1968 by O. J. Simpson. In Kaer's three years he had 36 touchdowns, a career record for the school, tied by Simpson in 1967 and 1968 (Simpson did it in two years). He was elected All-American in 1926.