"She always loved to entertain when I was growing up," Chase Church said Sunday. "A lot of famous people came over to have dinner, movie stars or different politicians."
She met every American president from Franklin Roosevelt to Bill Clinton.
"I was born to politics," Church told The Times-News in 2003. "It's part of me."
Church became a widow in 1984 when her husband died of cancer at the age of 59.
She remained in politics, becoming the elder stateswoman of Idaho Democrats, and continued to work on those things most important to her. That included education, promoting home health care and preserving Idaho's rivers and landscapes through the Sawtooth Society, the nonprofit organization she founded.
Church sat on the board of the Wilderness Society, founded the Frank Church Institute at Boise State University, which hosts yearly public policy conferences, and helped establish the Anne Frank Human Rights Memorial in Boise.
She only considered running for public office herself once, in 1986 for the U.S. Senate, but then bowed out when then-Gov. John Evans announced his bid.
"I'm better as a backup person, I think," Church said.
In 2003, her autobiography, "A Lifelong Affair: My Passion for People and Politics," was released.
Church told Idaho Public Radio she wanted to write the book for her grandchildren so they'd know more about her and her husband's political adventures. A Democrat who compared her party's struggle in Idaho to salmon swimming upstream, Church's origins are found in the most Republican part of Idaho.
Born Jean Bethine Clark on Feb. 19, 1923, in Mackay, she grew up in Idaho Falls, where her father and grandfather were mayors. In high school, she met Frank, a champion orator who went to Stanford University but left after a year to join the Army. When he was discharged in 1946, she had graduated from the University of Michigan and was engaged to somebody else.
"When I told him I was having cold feet about Milt, he said 'Then marry me,' and I said, 'Yes.' It seemed so natural, like it was bound to happen," Church said in a 2003 interview about her autobiography.
The couple had two children. She lost a son, the Rev. Forrest Church, to esophageal cancer in September 2009.
Church was awarded an honorary doctorate from Boise State University, where previous honorees include NASA astronaut and former Idaho elementary teacher Barbara Morgan.