Marylee Richardson Salomon, a former administrator in the passports and naturalization office at the Delaware County Courthouse whose greatest satisfaction was helping legal immigrants seeking to become American citizens, died Tuesday of complications of emphysema. She was 74 and lived in Media.

She attended high school in Unionville, Pa., then went to West Chester and Temple universities. She started working for the county in 1975 as a member of the Bicentennial Commission.

She conducted bus tours of the Brandywine Battlefield and other historic sites related to the Colonial period and the Revolutionary War.

In 1977, she went to work in the prothonotary's office, which later became the Office of Judicial Support. She helped residents obtain passports, often for the first time, and assisted immigrants in the paperwork needed to become citizens.

She worked for many years as a volunteer at Hedgerow Theater in Rose Valley, helping make costumes, running the box office and serving on the board of directors.

She was a member of the Swarthmore chapter of the League of Women Voters and was a Democratic committeeperson in Upper Providence Township. She taught Sunday school at the Unitarian-Universalist Church of Delaware County.

She is survived by her husband of 52 years, Richard Bruce Salomon; two daughters, M. Kealy Salomon and Elizabeth G. Salomon; three sons, Frederick R., Charles B. and Andrew H.; a brother, James H. Richardson; and two grandchildren.

Services: A memorial service is being planned.

In lieu of flowers, donations may be made to the Eleanor Roosevelt Center at Val Kill, P.O. Box 255, Hyde Park, NY, 12538, and the Media-Upper Providence Free Library, 1 E. Front St., Media, PA 19063. *