Katherine Ford Chaney, 80, a long-time Democratic Party campaigner and fund-raiser and a retired staff assistant for the Senate Judiciary Committee's old subcommittee on antitrust and monopoly, died Sunday at Georgetown University Hospital after a stroke.

Mrs. Chaney worked on the staff of the Senate subcommittee for about 12 years before retiring in 1968. After World War II, she worked as a fiscal officer for the old War Claims Commission.

A native of Brooklyn, N.Y., she campaigned in the 1928 and 1930 New York gubernatorial campaigns of Franklin D. Roosevelt and served as a member of his gubernatorial staff.

After moving to Washington in the 1930s, she was involved in fund-raising and other fiscal matters for the Democratic National Committee. She played an active role in raising funds in New York state for President Truman's 1948 election campaign.

Locally, she worked with Democratic D.C. Council member Polly Shackleton in her first campaign in 1974. She also was active in Shackleton's subsequent campaigns.

Mrs. Chaney, who lived in Georgetown, was a watercolorist who specialized in scenes of Georgetown and Maine. Her work was exhibited at the Smithsonian Institution, the Capitol Hill Show and at The Grange in Orange, Va.

She was a member of Epiphany Catholic Church in Georgetown and was active in Meals on Wheels.

Her husband, Charles H. Chaney, an employe of the War Production Board, died in 1949.

Survivors include two daughters, Anne C. Mesmer of Washington, and Jane C. Dobsevage of Danbury, Conn.; two brothers, John Ford of Brooklyn, and Edward Ford of South Orange, N.J.; a sister, Marguerite Ford of Richmond; seven grandchildren, and two great-grandchildren.