 Complete the following phrase:  Margaret Stride née MacGowan; born 21 December 1954 is a Canadian sprinter. She competed in the womens 400 metres at the 1976 Summer Olympics. She won a gold medal in the 1975 Pan American Games 4 × 400 metres relay with Joyce Sadowick, Rachelle Campbell and Joanne McTaggart. At the 1975 Pan American Games Stride, while competing under her maiden name McGowen, finished sixth in the 400 metres. She also won bronze medals in the 4 x 400 metres relay at the 1974 British Commonwealth Games and 