Heinz E. Bondy, a school administrator and educator for 54 years, died Feb. 18 at Asbury Methodist Village retirement community in Gaithersburg. He was 89.

The cause was cancer, said his wife, Dr. Carolyn Bondy.

Mr. Bondy’s parents, German Jewish educators who had emigrated to the United States in 1938, started the Windsor Mountain preparatory school in Windsor, Vt. It moved to Lenox, Mass., in 1944.

For 25 years, Mr. Bondy served as the school’s headmaster. During his tenure, he supported and championed racial integration of his school and schools in his community. He also helped establish the Boston-based A Better Chance program, which provided scholarships to prep schools for talented, disadvantaged students.

After Windsor Mountain closed in the mid-1970s, Mr. Bondy held administrative posts at the University of Massachusetts at Boston and helped found Elkins Mountain Schools in Elkins, W.Va. He moved to the Washington area in 1989 to serve as headmaster of the old Canterbury School in Accokeek.

From 1994 until his retirement in 1998, he was director of the Christian Family Montessori School, an elementary school, in Mount Rainier in Prince George’s County.

Heinz Eric Bondy was born in Bad Gandersheim, Germany. He became a U.S. citizen in 1942. He was a 1948 graduate of Swarthmore College in Pennsylvania and in 1950 received a master’s degree in history from Bryn Mawr College, a women’s school in Pennsylvania that admitted men into its graduate programs.

During World War II, he served in an Army unit of German Jewish refugee soldiers known as the Ritchie Boys, named after the Maryland-based intelligence school where they were trained. He participated in the Normandy invasion, the Battle of the Bulge and the liberation of Dachau concentration camp.

In 2011, he moved to Gaithersburg from Germantown.

His first marriage, to Eleanor Burwell, ended in divorce. Survivors include his wife of 47 years, Dr. Carolyn Louks Bondy of Gaithersburg; two sons from his second marriage, Peter Bondy of Olney, Md., and C. Eric Bondy of Lancaster, Pa.; and four grandchildren.

— Megan McDonough