Army Medical service Corps Major John Raymond Harechmak, 39, an assistant professor of health care administration at Ft. Sam Houston, Texas, died Thursday in San Antonio, Texas. Family members said he took his own life.

Before moving with his family to San Antonio in May, Major Harechmak had served as project officer for the moving of Walter Reed Hospital, which is relocating to a new building. Major Harechmak had helped coordinate the move for three years, and then three months ago was asked by the army to begin teaching health care administration at the Academy of the Health Sciences at Ft. Sam Houston.

Born in New York City, Maj. Harechmak attended Stuyvesant High School and went on to Johns Hopkins University. In 1960 he enlisted in the Army and was sent to Vietnam, where he flew medical evacuation helicopters and earned the Silver Star.

When he returned from Vietnam, Maj. Harechmak was stationed first at Ft. Meade, Md., and then briefly at Ft. Sam Houston. He left active duty three times to earn graduate degrees - a master's in business from George Washington University a master's in geography from the University of Tennessee, and finally a PhD. in hospital administration from the University of Iowa in Iowa City.

Maj. Hareckmark came to Washington after receiving his degree from the University of Iowa, settling in Gaithersburg while he helped supervise the move of Walter Reed Hospital. He and his family were members of the Gaithersburg Presbyterian Church, and he served on the rehabilitation committee of the Montgomery County Health Care Planning Agency.

A swimmer and competitive athlete in high school and his early army days, Maj. Harechmak clung to his love for the outdoors. He and his family kept a sailboat to sail out of Sandy Point State Park, and he was an enthusiatic committee chairman for the Gaithersburg Boys Scouts.

He is survived by his wife, Susan, of the home in San Antonio; sons, John Jr. and james; daughter, Susan Elizabeth; brothers, Kenneth and Raymond, of New York City; and parents, John and Marie Hareckmak, also of New York City.

The family asks that expressions of sympathy be donated to the University of Iowa John Harechmak Memorial Fund, Iowa City, Iowa 52242.