Joseph F. Mattingly, 71, postmaster of Indian Head Md. for 35 years, died of cancer Friday at his home.

The full-time manager of Mattingly's Department Store, which was owned by his father from 1923 to 1925 and from 1930 to 1933. Mr. Mattingly was the part-time manager of the store from 1933 to 1942 when it closed.

In the interim. Mr. Mattingly worked as general manager for a bottling company in Waldorf, Md. adn did other jobs.

He was the first fire chief of the Indian Head Volunteer Fire Department and a charter member of the Indian Head Businessmen's Association.

Mr. Mattingly served as postmaster of Indian Head from 1976 to 1971.

He also was judge of elections in Indian Head and a member of the board of trustees at Physicans Memorial Hospital in La Plaza, Md.

His father, Francis E. Mattingly, had been the first postmaster of Indian Head, justice of the peace in Indian Head and a member of the Maryland House of Delegates for many years.

Mr. Mattingly was a charter member of the Indian Head Lions Club.

He is survived by his wife, Hazel, of the home: two daughters. Joan M. Willoughby of Oxon Hill, and Ferne M. Johnson of Indian Head; two sons, Joseph F. Jr. of Oxon Hill, and Don E. of Springfield, Va.: a sister, Agnes G. Hurley, of Arlington: a brother, Charles L. of Indian Head, 14 grandchildren and six great-grandchildren.