Records include correspondence, memoranda, reports, studies, and briefing materials to and from City agencies regarding the full range of municipal government activities during Rice's terms as mayor. Topics include municipal facilities, arts and culture, planning, budget and financial issues, and schools and education, among others. Records are arranged chronologically and then by major departments within City government. Constituent correspondence is included in this record series.

Correspondence, memoranda, reports, and studies relating primarily to land use and transportation issues and planning for Seattle Center development.

Correspondence, memoranda, reports, and reference materials relating to Benson and topics of particular interest to him. Major subjects include parks and recreation, traffic and transportation, and the Westlake Mall Project, the Downtown Seattle Transit Project, the University District Transportation Program, the Waterfront Streetcar, gun control, land use, and solid waste disposal.

Correspondence, reports, newspaper clippings, and photographs collected by Massart while serving on City Council (1950-1967). Includes materials relating to Metro, Seattle Center, Century 21 Exposition, Pacific Science Center Foundation, and the Port of Seattle. Other subjects include transportation, city finances, housing, alcoholism, sports stadium, human rights, and urban renewal.