J. Murray Mitchell, 62, a consultant since 1986 who was a retired senior research climatologist and meteorologist with the National Oceanic and Atmospheric Administration, died of lymphoma Oct. 5 at Georgetown University Hospital. He lived in McLean.

Dr. Mitchell was an authority on climatology, the study of long-term weather trends and the impact of climate change on populations. He held high government awards and was active in professional organizations. He also gained a reputation as an accomplished research scientist who could present new technical scientific information in such a way that it could be understood by laymen.

He came to Washington and began his government career in 1955 as a research meteorologist with what was then the Commerce Department's Weather Bureau. From 1965 to 1974, he was a project scientist with the climate change project of the Environmental Science Services Administration. He then was a NOAA senior research climatologist and a science adviser with NOAA's Environmental Data Information Service before retiring in 1986.

Dr. Mitchell had been instrumental in the U.S.-U.S.S.R. bilateral agreement on environmental protection. He also had served on committees, boards and advisory panels of such organizations as the National Academy of Sciences, the National Science Foundation, the American Association for the Advancement of Science and the American Geophysical Union.

He was a visiting scientist in the advanced study program of the National Center for Atmospheric Research. He also had been an executive editor of Weatherwise magazine and had held editorial posts with the Geophysical Union and the American Meteorological Society.

His awards included the Commerce Department's Gold and Silver medals and a 1980 NOAA Administrator's Award. He also was the recipient of awards from the American Meteorological Society.

Dr. Mitchell, who was a native of New York City, served in the Air Force from 1952 to 1955. A graduate of the Massachusetts Institute of Technology, he also received a master's degree in meteorology there and a doctorate in meteorology from Pennsylvania State University. He was a member of the Cosmos Club.

Survivors include his wife, Pollyanne, of McLean; two sons, Brian, of Lancaster, Pa., and John, of McLean; two daughters, Katherine Abid of Houston, and Anne Mitchell of McLean; and a sister, Lillian Norman of Vero Beach, Fla.


Seamstress & Manager

Lillian Hoffman, 79, a former seamstress and retired beauty salon manager, died of renal failure Oct. 6 at Washington Adventist Hospital. She lived in Silver Spring. She also was an artist whose watercolors had been exhibited at local shows.

Mrs. Hoffman, who was born in New Jersey, was a department store seamstress in New York City in the 1930s. She came here about 1950. She was a seamstress with the Ruth Rider women's clothing store in Langley Park in the 1960s. She was a manager with Jule's beauty salon in Silver Spring from the late 1960s through the 1970s.

Her husband, Moe Hoffman, died in August 1990. Her survivors include a son, Henry I., of Silver Spring; a daughter, Paula H. Alpart of Albany, N.Y.; a brother, Irving Brown of Baltimore; two sisters, Lucille Ackerman of Port St. Lucie, Fla., and Ida Berman of Baltimore; and four grandchildren.


Postal Worker

Edward V. Ryan, 80, a retired postal worker who was active in Catholic organizations, died Oct. 6 at Reston Hospital after a stroke. He had emphysema.

He joined the Post Office Department, the forerunner of the U.S. Postal Service, in Pennsylvania in 1943, and transferred here in 1948. A former letter carrier, he retired in 1970 as a case worker in the Postal Service's inspection division.

Mr. Ryan was a member of St. James Catholic Church in Falls Church since 1948. He coached CYO basketball at the church from 1953 to 1981. He was a founder and past president of the Northern Virginia chapter of the Ancient Order of Hibernians. He was a member of the Edward White chapter of the Knights of Columbus in Arlington.

He had served as director of the Christmas basketball tournament at Bishop O'Connell High School in Arlington. He also worked in the school's alumni program. Mr. Ryan, who lived in Falls Church, was a native of Pennsylvania. He attended St. Joseph's College in Philadelphia.

Survivors include his wife, Ruth J., and a son, Edward J., both of Falls Church; and two grandchildren.