Mary Pierce and Shelby Cannon, share which occupation?
Mary Pierce Mary Pierce (born 15 January 1975) is a French retired tennis professional who played on the Women's Tennis Association (WTA) tour. Born in Canada, she is a citizen of Canada, and the United States. Pierce played for France in team competitions and in the Olympics.
Mary Ellen Mark Mary Ellen Mark (March 20, 1940 – May 25, 2015) was an American photographer known for her photojournalism / documentary photography, portraiture, and advertising photography. She photographed people who were "away from mainstream society and toward its more interesting, often troubled fringes".