Hammon H. Hobbs Sr., 73, a printer at the Government Printing Office for 34 years, died Tuesday of a stroke in the Manor Care Nursing Center in Wheaton, Md.

At the time of his retirement in 1963, Mr. Hobbs was a printing supervisor at the GPO.

In addition to his work as a printer, Mr. Hobbs also worked as a clown. He most often appeared as a clown with the clown group of Almas Temple and Clowns of America. The groups performed at hospitals and schools and on civic occassions.

A native of West Columbia, S.C., Mr. Hobbs began his career as a printer with the State Company's newspaper in West Columbia.

After working for The State for 10 years, Mr. Hobbs moved to Washington to work for GPO.

A resident of Silver Spring, Md., Mr. Hobbs was a member of Almas Temple; a charter member of St. Luke Lutheran Church in Silver Spring and Masonic Lodge No. 215 in Silver Spring; and Clowns of America.

With the Clowns of America and Almas Temple, Mr. Hobbs made frequent appearances at the schools and hospitals for the crippled, aged and handicapped. He was most active as a clown after his retirement from printing.

Mr. Hobbs is survived by his wife, Margaret, of the home in Silver Springs; two sons, Hammon H. Hobbs Jr., of Clinton Md. and Melton Hobbs, of Rockville; two granddaughters, Cynthia Anne and Celeste Hobbs of Rockville; and six grandsons.