John C. Carroll, 52, an insurance agent, gun collector and member of the North-South Skirmish Association, died of cancer, Monday at Holy Cross Hospital in Silver Spring.

Mr. Carroll, a resident of Burtonsville, Md., commanded the Potomac region of the skirmish association, an organization of Civil War enthusasts who reenact events of the war. He also was chairman of its property management committee and its judge advocate general.

During the centennial of the Civil War, Mr. Carroll helped organize members of the skirmish association who represented the Confederate side in the reenactment of the First Battle of Manassas in 1961. It was the first of several reenactments of Civil War battles conducted from 1961 to 1965.

Mr. Carroll also collected and fired muzzle-loading weapons. He was president of the Potomac Arms Collectors Association and a member of the Maryland Arms Collectors Association. He was a life member of the National Rifle Association and a member of the Montgomery County Range Committee.

Mr. Carroll, a native of Washington, graduated from Roosevelt High School here and then joined the Marine Corps at the end of World War II. After his discharge, he attended the University of Maryland. He was recalled to active service during the Korean conflict and later earned a bachelor's degree in business administration at Maryland.

He worked for the American Security and Trust Co. in Washington and then for Zinder & Associates, and engineering consulting firm. About 1963, he became an agent for Connecticut Mutual Life Insurance Co. In the early 1970's he switched to Bankers Life Nebraska.

Mr. Carroll was a member of the Lions Club of Burtonsville and was chairman of its eye program.He also was a founding member of the Buronsville Volunteer Fire Department in the late 1940's.

Survivors include his wife, Lois, of the home; a daughter, Laurie Carroll Walker, and a son, James, also of the home, and a granddaughter.