He was raised in Lowell and graduated from Harvard College. Mr. Flather received a master's degree in business administration from Northeastern University in Boston, and later received a master's in education at Cambridge College, where he served as a trustee. He also received a master's of science in education from Long Island University in New York.
Mr. Flather served in the U.S. Navy as a lieutenant and pilot. After President Kennedy established the Peace Corps in 1961, he served as an administrator in the agency's first program in the Philippines and Malaysia, and became chief of the Pacific Islands in Micronesia.
Mr. Flather also had a career at Raytheon Co., and also was involved in nonprofit international education, administration, fundraising and real estate. For the past 14 years, Mr. Flather was a special education teacher for New York public schools.
Besides his wife, he is survived by his children, Lisa Flather, Julie Zeitlin and her husband Marc, John Rogers Flather III, and Meg Flather and her partner James Rogers; two grandchildren, Rachel and Sam Zeitlin; and four siblings, Katherine Breen, Alice Blodgett, Elizabeth Haddah and Newell Flather.