A memorial will be held at 6 p.m. on April 18, at the Museum of Television and Radio, 25 W. 52nd St., New York City, for Phyllis Sari Levy, former book editor of Good Housekeeping , who died of ovarian cancer on February 12 at the age of 69. Levy began her publishing career at Simon & Schuster in the 1950s, where she worked with author Rona Jaffe, who had been her roommate at Radcliffe College. She later moved to Viking, where she discovered author Ken Kesey. She was a senior editor at McCall's before moving to Good Housekeeping in 1982.