Zachary Adelson, 87, of San Francisco, California and Bal Harbour, Florida, formerly of Boston, MA, on March 7,2019. Zachary was the son of the late Arthur and Sarah Adelson and the brother of Sheldon Adelson and his wife Dr. Miriam Adelson, Leonard Adelson and his wife Rita Adelson, and the late Gloria Adelson Field. He was loved by his nephews and nieces, and grand- nephews and grand-nieces and cousins, and will be sorely missed by his friends Ruben Rodriguez and Betty Yurcich to whom his family is forever grateful for their friendship and care. Zach had a good sense of humor and a sharp wit, always had a good story to tell and will be missed by his many other friends and acquaintances. Services and memorial observance will be private and a memorial for Zach will be held at a later date. Contributions in Zach’s memory may be made to the Adelson Clinic for Drug Abuse Treatment & Research, 3661 South Maryland Parkway, Suite 64, Las Vegas, NV 89169.