John Zack Jr. ’53
John Frank Zack Jr (90) passed away peacefully on February 16, 2022 at home in Nipomo, CA. He was born in Muskegon on February 2, 1932 to John and Verna (Sweet) Zack. John is a graduate of Muskegon High, Hope College with a BA in Chemistry. He received his Ph.D. In Organic Chemistry from the University of Illinois in 1956. He married Claudelle (Bollenbach) on March 31, 1951. He married Kathleen (McClain) on November 25, 1978. He is survived by his six children: Elizabeth Hope Zack ’75 (James) Riesen ‘75 of Ocean Park WA, Deborah (Steve) Rogers of Willits CA, Faith (Jaap Selman) Zack of Santa Cruz CA, Dennis (Shannon) Zack of Santa Cruz CA, James (Cindy) Zack of Alhambra CA and Pieter (Linda) Zack of Fishers IN. He is also survived by eight grandchildren and ten great grandchildren.
John worked for Dow Corning Corporation in Midland MI as a Project Leader of Research Department, Atomics International in Canoga Park CA as Supervisor of Radiation Effects Group, Reference Laboratory in North Hollywood CA as Director of Research, Clinical Laboratory Medical Group in Los Angeles CA as Chief Biochemist, Saint John’s Hospital in Santa Monica CA as AssistNt Director of Department of Pathology, Nichols Institute in San Juan Capistrano CA as Vice President of Reference Laboratory Operations and Beckman Instruments in Brea CA and Manager Technical Systems Department.