Gertrude O'Neill Tinkelenberg, 83, who was active in Baptist church work in this area, died Tuesday at the National Orthopaedic Hospital after a heart attack.

From 1952 until 1962, she had been educational director of the Congress Heights Baptist Church in Washington. She then served in the same position for 10 years at Groveton Baptist Church in Virginia.

Mrs. Tinkelenberg had been active in the D.C. Baptist Convention and had been in charge of its vacation Bible school program for many years.

Born in Cleveland, Ohio, she was a graduate of Western Reserve University. She was a church secretary in Cleveland and later a public school teacher in Burlington, Ky., before coming to this area in 1941.

A resident of Hillcrest Heights for many years, she moved to Groveton after the death in 1962 of her husband band, Casper, a sanitary engineer.

Mrs. Tinkelenberg was a member of Electa Chapter No. 2 of the Eastern Star.

She is survived by a daughter, Louise, of the home in Groveton; two sons, Albert, of Madison, Va., and William R., of Burbank, Calif., 12 grandchildren and six great-grandchildren.

The family suggests that expressions of sympathy may be in the form of contributions to the Groveton Baptist Church.