The Committee for the 18th Annual Friends of Mercy Golf and Tennis Classic to benefit Mercy Medical Center is led by: Co-Chairman Dan Lennon, Friends of Mercy President Francis X. Murray and Co-chairman Jim St. John, all of Rockville Centre; Co-chairman Ed Galvin of Manhasset; and "Mercy's Favorite Auctioneer," Clark Gillies of Dix Hills. The men's event, which raises funds for Mercy's capital improvement projects will be held Sept. 13 at three prestigious country clubs: Fresh Meadows, Plandome and North Shore. For information, contact Dede DeLong at 255-2577.