Alice Brock, whose Massachusetts-based eatery helped inspire Arlo Guthrie’s deadpan Thanksgiving standard, “Alice’s Restaurant Massacree,” has died. She was 83.

Her death, just a week before Thanksgiving, was announced Friday by Guthrie on the Facebook page of his own Rising Son Records. Guthrie wrote that she died in Provincetown, Massachusetts, her residence for some 40 years, and referred to her being in failing health. Other details were not immediately available.

“This coming Thanksgiving will be the first without her,” Guthrie wrote. “Alice and I spoke by phone a couple of weeks ago, and she sounded like her old self. We joked around and had a couple of good laughs even though we knew we’d never have another chance to talk together.”

Born Alice May Pelkey in New York City, Brock was a lifelong rebel who was a member of Students for a Democratic Society, among other organizations. In the early 1960s,...