Eugenia (Jean) Daugherty, 67, a retired case worker in the office of Rep. John W. Wydler (R-N.Y.) who earlier worked for the Agriculture Department, died Thursday at the Lorien Nursing Home in Columbia, Md., of Alzheimer's Disease, a neurological disorder.

Mrs. Daugherty was born in Rockport, Ind., and attended business college in Evansville, Ind.

After moving to the Washington area in 1934, she worked for the Department of Agriculture for several years before stopping to rear a family.

In 1947, she went to work on Capitol Hill. She was on the staffs of Reps. William T. Cahill and Gordon Canfield, both New Jersey Republicans, before joining Wydler's staff. She was a secretary and office manager in Wydler's Washington office and then a case worker. She retired last year.

Mrs. Daugherty was a resident of Fort Washington, Md., and a member of the Capitol Hill Club.

Her husband of 31 years, Forrest Daugherty, a D.C. police detective in the Youth Aid Division, died in 1964.

Survivors include a son, F. Timothy, of Ellicott City, Md.; a daughter, Donna A. DiGennaro of Orange Park, Fla.; a brother, James Abshire of Evansville, and three grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to Children's Hospital National Medical Center.