Boris Roolaid
Boris Roolaid was an Estonian backstroke swimmer. He competed in the 100 m event at the 1936 Summer Olympics, alongside his younger brother Egon, but failed to reach the final. Roolaid took up swimming in 1932, and between 1935 and 1937 won three national titles. In 1941 both brothers were sent to Soviet labor camps, where they died in 1942–43.