After Rabin was assassinated Nov. 4, Simmons grew a beard as a sign of mourning. He met Rabin many years ago when the prime minister was in Washington, D.C., as Israel's ambassador to the United States.
Simmons' service to Israel Bonds continued a family tradition started by his father, who also had worked at the bonds office.
"Frank brought his wit, his warmth, his experience and his great intelligence to our organization and to his work," said retired Israeli Maj. Gen. Nathan Sharony, president and CEO of Israel Bonds. "He loved Israel with all his heart and he developed many meaningful ties for the state of Israel."
Simmons received a master's degree in history and philosophy from Cambridge University in England.
He also graduated from New York University.