Joseph Edward Lynch Sr., 75, a retired mechanic for the old D.C. Transit Co. who also worked as a handyman for many years, died Thursday at the Anne Arundel General Hospital in Annapolis after a heart attack.

Mr. Lynch was a mechanic for the transit company for 25 years before his retirement in 1969. He also was a handyman for the late Mr. and Mrs. Robert Woods Bliss at their Washington home, Dumbarton Oaks, for a number of years.

He was born and reared in Washington and lived here before moving to Edgewater, Md., in 1973. He was a member of Our Lady of Perpetual Help Catholic Church there.

Mr. Lynch was a member of Local 689 of the Amalgamated Association of Street, Electric Railway and Motorcoach Employes of America.

Survivors include his wife of 50 years, Marion G. (Ella), of the home; nine daughters, Linda, of Lanham, Patricia Chupp of Arlington, Tex., Jill Cocchiaro of New Carollton, Kay Greiser of Pennsylvania, Claudia Caruso of Annapolis, Adelaide Glover of Gainesville, Va., Diane Jurik of Davidsonville, Md., Suzanne Healey of Riverdale, and Donna Turner of Davidsonville; a son, John E. of Aldie, Va; two sisters, Blanche Green and Evelyn Shoemaker; and a brother, Douglas, all of Washington, and 38 grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the American Heart Association.