Harvard is now in a three-way tie for first place in the Ivy League, a position it occupied for all of last year.
"Above all, we want to win the Ivy League because that will give us a spot in the NCAA tournament," Corkery said. "And I think it shows what a great team we are that we were able to come back from being down on Saturday."
Harvard next faces No. 10 Hartford, which beat Yale 5-0 last week. The Crimson tied the Hawks 2-2 last season.
Harvard's next Ivy match comes against Brown on Saturday. The Bears have yet to play their first league game.
Notes
Stewart's game-winning tally was actually her second in as many seasons. In 1999, she scored the deciding goal in Harvard's 2-1 overtime victory over Princeton.
With Saturday's loss, Penn saw its nine-game home winning streak come to an end. The Quakers had not lost a contest at Rhodes Field since October 31, 1998, when they dropped a 2-0 decision to Yale.