Joan Marjorie Langdon, also known by her married names Joan Parnell and Joan McLagan, is a Canadian former competition swimmer and breaststroker who competed in the 1936 Summer Olympics in Berlin, Germany.
Career
At the age of 13, she competed in the first round of the 200-metre breaststroke, but did not advance.
Achievements
At the 1938 British Empire Games in Sydney, she won the bronze medal in the 220-yard breaststroke competition.
