Jacob Hoffman, 69, president of the General Wrecking Co. here until his retirement in 1978, died of renal and heart failure Wednesday at Washington Hospital Center.

In 1966, after reading a Washington Post editorial on the need of lighting D.C. playgrounds at night, Mr. Hoffman and another wrecking company official, Harry Milzman, a brother-in-law, donated about 75 lights left from the wreckage of the old Griffith Stadium to this city project. The lights, said to be the first private contribution of that nature, were used to illuminate 19 city playgrounds for night softball games and other sports.

Mr. Hoffman was born in Hanover, Pa., and grew up in Baltimore. He had operated his wrecking company and yard in Washington since 1940 and had lived here since about 1945.

He was a Shriner, a 32nd degree Mason and a member of the Amicable Masonic Lodge. He also was a member of the Progress Club, a businessmen's organization, the Optimist Club, and Beth Sholom Synagogue in Washington.

Survivors include his wife, Mildred, of the home in Washington; a daughter, Harriet Lee Summerlin, of Takoma Park; two brothers, Irvin and Julius, and two sisters, Selma Stein and Jeannette Friedman, all of Baltimore; another sister, Florence Milzman, of Bethesda, and three grandchildren.