Eustacia Cutler is an autism activist and mother of Temple Grandin. She reside in New York City.

Cutler earned her Bachelor's degree from Harvard University. After college, she was a band singer at the Pierre Hotel in New York CityIn her youth and adulthood, she brushed shoulders with the high society of New England. She spent time at the Dedham Polo Club and Martha's Vineyard and shared company with Winston Churchill, George Gershwin, and Robert Frost.

Cutler married Richard Grandin and they had four children, one of them being Temple Grandin. As it became apparent that she had autism, called infant schezophrenia at the time, Richard wanted to institutionalize Temple but Cutler vehemetly disagreed. They divorced in the 1950s, and Cutler raised Temple as a single mother. Temple eventually went on achieve great success in animal studies and autism advocacy. Cutler herself became an advocate to share her story with others.

Curler's research on autism and retardation created the script for two WGBH television documentaries: The Disquieted and The Innocents, a prize-winning first.

Her 2006 book, A Thorn in My Pocket, describes raising Temple in the conservative world of the '50s when autistic children were routinely diagnosed as infant schizophrenics and banished to institutions.

Her most recent book, Autism Old As Time, is a collection of essays written to take the reader on a journey through history, examining the impact of autism on the opinions and solutions of writers, poets, and other prominent individuals from the early 19th century through today. Cutler resides in the Upper West Side and travels the country giving 12-15 speeches a year to family with autistic children.