John Harris Hall, 51, the deputy assistant secretary of the Treasury for tax policy from 1972 to 1974, died Oct. 16 of injuries sustained that day when the private plane he was piloting crashed on approach to Sacramento Executive Airport in California.

Mr. Hall, a resident of Pasadena, Calif., was a partner in the law firm of Latham & Watkins in Los Angeles and Latham, Watkins & Hills in Washington. He was on a business trip at the time of his death.

He was born in New York City and educated at Princeton University and Harvard Law School, where he was an editor of the Law Review. He was a navigator in the Air Force during the Korean conclift.

Mr. Hall joined Latham & Watkins in 1957. He remained there until he joined the Treasury in 1972 and returned to it when he left government.

His marriage to the former Althea Flygare ended in divorce.

Survivors include his wife, Cynthia Holcomb Hall, a judge of the U.S. Tax Court, of Pasadena; their son, Harris, of Pasadena; four children by his first marriage, Jonathan, Nathaniel, Andrew and Mary, all of Los Angeles; a stepdaughter, Desma Holcomb of New York City; his mother, Mrs. Harris T. Hall of Allentown, Pa.; two brothers; and five sisters.

The family suggests that expressions of sympathy be in the form of contributions to the John Harris Hall Memorial Fund, c/o Recording Secretary, P.O. Box 140, Princeton University, Princeton, N.J., 08544.