Jane Hill Wellemeyer, 69, a retired teacher who was a leader in parent-teacher associations and other school groups in Fairfax County, died of congestive heart failure Monday at George Washington University Hospital.

Mrs. Wellemeyer taught in Fairfax County public schools for more than 20 years before retiring in about 1976 from Groveton High School.

She was born in Emporia, Kan., moved to this area with her family in the early 1930s and graduated from George Washington University. After her marriage in 1940 to J. Fletcher Wellemeyer, a consultant, she and her husband moved to the Mount Vernon district of Fairfax County. He died in 1971.

In 1945, Mrs. Wellemeyer became a leader in county campaigns for better schools. She served as president of the Fairfax County Federation of Parent-Teacher Associations in the early 1950s. She also was chairman of the federation's legislative committee and the Northern Virginia P-TA scholarship committee.

In addition, she was a member of the school committee of the Fairfax County Federation of Citizens Associations and the board of the Fairfax County School Committee.

Mrs. Wellemeyer was a former president of the Fairfax County League of Women Voters and a charter member of the Tenth District Democratic Women's Club and the Democratic Women of Mount Vernon.

In recent years, she had worked for the Fairfax County Agency on Aging.

Survivors include a daughter, Mary McNally of Lewiston, Maine, and two sons, John, of Alexandria, and Charles, of Takoma Park; a sister, Mary Puck of Denver, and three grandsons.

The family suggests that expressions of sympathy be in the form of contributions to the Saunders B. Moon Community Center in Alexandria.