Records concerning annexations to the City of Seattle during the 1940s and 1950s. Includes petitions, area maps, correspondence, ordinance copies, taxation calculations, and personal notes. Principal annexed areas are Arbor Heights, Ballard Tidelands, Blue Ridge, Lake Ridge, Maple Leaf, Northgate, Roxbury, Sand Point, Turner, and West Seattle. Also includes annexation studies by the Engineering Department and the Municipal League.