Everett Lee (John) Hollar Jr., 57, an instrument technician with the Defense Mapping Agency for 20 years before retiring in 1980, died of cancer Jan. 10 at the Veterans Administration Hospital in Washington. He lived in Silver Spring.

Mr. Hollar had been an area resident since the mid-1940s.He repaired watches for area jewelry stores, and was a technician with the National Institutes of Health and the old Atomic Energy Commission before joining the Defense Department.

Since 1980, he had been a starter at the Northwest Park Golf Course in Silver Spring. His hobbies included golf.

Mr. Hollar was a native of Henry River, N.C. He served with the Marine Corps in the Pacific during World War II and was awarded the Purple Heart Medal.

Survivors include his wife, Phyllis A., of Silver Spring; four sons, Everett L. III, of Whittier, Calif., and Steven W., Kenneth G. and Gerald L., all of Silver Spring; three daughters, Martha E. Potter of LaPlata, Md., Janet K. Colt of Sterling, Va., and Rebecca J. Wallace of New Orleans; a brother, Paul C., of Fayetteville, N.C.; two sisters, Ruth H. Suddreth of Lenoir, N.C., and Betty H. McLean of High Point, N.C.; a half-brother, Donald R. Hollar of Pennsylvania; two half-sisters, Gloria H. Adkins of Fayetteville, and Jewell H. Bordeaux of Wilmington, N.C., and four grandchildren.