Esther M. Zimmer Lederberg
Sobell, Hank; Sobell, Lourdes

  1. Sobell, Lourdes; Lederberg, Esther M. Zimmer: March, 1973
  2. Sobell, Lourdes; Sobell, Hank; ?; ?: March, 1973
  3. Sobell, Hank; ?; ?: March, 1973
  4. Sobell, Hank; Lederberg, Esther M. Zimmer; Sobell, Lourdes: circa 1983
  5. Sobell, Lourdes; Lederberg, Esther: circa 1994/1995
  6. Sobell, Lourdes; Sobell, Hank: circa 1994/1995