Peter I. Jatlow, M.D., 84, died May 18. He was the husband of Stephanie Jatlow. He was born in New Brunswick, N.J. and raised in Mount Vernon, N.Y. In addition to his wife, he is survived by his daughters, Allison Beitler and her husband Richard, and Julie Guilmette and her husband Keith; and his grandsons, Gordon, Brian and Daniel.