In the mid-1980s, Carol Colleran made a promise to her daughter, who was dying of ovarian cancer.
"It was a promise that she would make a shift in her life," said Colleran's surviving daughter, Amy.
Colleran, who had gotten sober in 1982, had been urged by her daughter to become an addiction counselor.
Now in middle age, she followed her daughter's advice.
It was a decision that not only changed her own life but helped transform the addiction treatment industry. Colleran went on to advocate for treatment programs for older adults and hold leadership positions at some of the nation's most prominent addiction treatment organizations, at a time when the treatment needs of older adults were largely ignored.
"She was a giant in our field," said William Cope Moyers, vice president of public affairs and community relations for the Hazelden Betty Ford Foundation. "She was talking about older adults when nobody else really was."
Colleran, 82, died April 24 at her home in Palm Beach Gardens, Fla.
Born in Estherville, Iowa, and raised in Bloomington, Colleran moved to small towns in Wisconsin — Centuria and Balsam Lake — to raise a family after she married Jim Colleran.