She also swam in the first heat of 4×100-meter freestyle relay, but was replaced by Eleanor Garatti in the final.

McKim served as the body double for Maureen O'Sullivan in a deleted nude underwater scene from MGM's adventure film, Tarzan and His Mate (1934), which has since been restored to home video releases.

She also had a bit part in Universal's Bride of Frankenstein (1935) as a mermaid, one of Dr. Pretorius' "miniaturized" people.

Later she had a stage career on Broadway (1938 to 1942) appearing in "Family Portrait" (1939) with Judith Anderson and Tom Ewell at the Morosco Theater and a Lee Strasburg production "Dance Night" (1938) among several others.

McKim was inducted into the International Swimming Hall of Fame as an "Honor Swimmer" in 1991.