July 23, 2010 Clarkson Trio Invited to Canada's Under-22 Camp Katelyn Ptolemy, a standout veteran for the Clarkson University Womens Hockey team, and Erica Howe and Jamie Lee Rattray, two promising Golden Knights recruits, are among a group of 36 skaters (forwards and defencemen) who have been invited to Canadas National Women's Under-22 Team selection camp, August 6-15 at the Mastercard Centre in Toronto, Ont., Hockey Canada announced Friday.