Lawrence Martin Cooper, 57, a retired file clerk and a member of the 25th Army Band for 27 years, died of Cancer Friday at the Veterans Administration Hospital in Washington.

Mr. Cooper began writing for the government about 1946. In 1971, he retired as a file clerk with the Veterans Administration. He previously had worked for the departments of the Navy and Health, Education and Welfare.

He served in the Army during World War II, and after his discharge in 1946, joined the Army National Quart as a bandsmanDuring his 27 years with the 25th Army Band he had played every wind instrument.

Mr. Cooper was born in Panama and came to the United States with his family in [WORD ILLEGIBLE] He grew up in BrooklynN.Y., and came here 32 years ago.

He graducated from the Modern Sound of Music in 1955 and was a former member of Musican's Union Local

:Survivors include a son, Lawrence M. Jr., and a sister, Edith C. Lawrence, both of the home in Washington, and a brother, Vernon M., of Brooklyn.

The family suggests that expressions of sympathy be in the form of contributions to the Vincent T. Lombardi Cancer Research Center at Georgetown University Hospital or the Howard University Cancer Center.