Collection includes a manuscript letter written from English Camp, Cultus Lake, Idaho, with ink and color pencil sketches entitled "Pend d'Oreille Country"; an ink and watercolor sketch of Weeksville, Montana; a sketchbook with pencil and ink Pacific Northwest scenes; and an autograph book containing pencil and ink sketch of Tillamook Bay, Oregon.

Six ink and pencil sketches by William H. Dierdorff (1849-1903) with notations for hymns to perform at church services, and a brief biography of Dierdorff by his grandson. Dierdorff emigrated to Oregon in 1856, and after working as a civil engineer and draftsman, became a Presbyterian minister.