Betsy C. McIsaac of Pittsford, N.Y., and West Tisbury died peacefully in her sleep on Oct. 7 after a brief illness. She was 91.

Betsy arrived in West Tisbury in 1968 and built her beloved summer home at the top of Town Cove in 1971. Her summers on the Island were filled with joy and the love of family, friends and place. She never missed even one summer.

An educator by profession, she was the director of several independent schools and a founding director of Martha’s Vineyard’s Options in Education. From that position, she helped establish and launch the Martha’s Vineyard Charter School. She served as an advisor to the school’s board of directors for many years.

She is survived by her sons Scott and his wife Suzanne Durrell, Chris and his wife Tracey Braun; grandchildren Duncan, Lexie, Jak, Colin and Jessie; many loving nieces and nephews; innumerable friends of every age; and her black cat, Boo.

A celebration of Betsy’s life will be held at a later date.