[2][3] He was active from 1931 to 1973 and won 6 career titles, 5 of which came at the ATA National Championships (1931–33, 1937, 1942).

[1] Weir was captain of the City College of New York men's tennis team.

After graduating from CCNY in 1931, he was American Tennis Association (ATA) national champion in 1931, 1932, 1933, 1937, and 1942.

[2] With the support of the NAACP, Weir and a partner originally attempted to play at a United States Lawn Tennis Association's (USLTA)-sponsored indoor tournament in 1929, but they were turned away when organizers realized he was African-American.

[4] Weir was a graduate of the medical school of New York University and practiced family medicine from 1935 to 1985.