Marguerite “Mimi” Musil, who spent 25 years with Montgomery County Public Schools before retiring in 1995 as a special education aide at Carl Sandburg Learning Center in Rockville, died Sept. 21 at a hospice in Pinellas Park, Fla. She was 80.

She had cancer, said her daughter Jeanne Dempsey.

Marguerite Marie Beaudot was born in Philadelphia. She settled in the Washington area at 18 and was an operator at Chesapeake & Potomac Telephone Co. and did secretarial work at the CIA, her family said.

She began her public school career as a cafeteria manager. She received an associate’s degree in special education from Montgomery College in 1978 and soon began working as a special education aide at Kensington Parkwood Elementary School.

In retirement, she moved from Kensington to Largo, Fla. She was a past member of the American Legion ladies auxiliary in Wheaton.

Her first marriage, to Arthur Turner, ended in divorce. Her second husband, Jack Musil, died in 2001 after 22 years of marriage.

Survivors include five daughters from her first marriage, Patricia Marks of Deerfield Beach, Fla., Chris Choquette of Seminole, Fla., Kathleen Turner of Falls Church, Roberta Turner of Westminster, Md., and Jeanne Dempsey of Ijamsville; three stepchildren, Craig Musil of Churchton, Robin Grega of Beverly Hills, Fla., and Lynne Phipps of West River; and eight grandchildren.

— Adam Bernstein