The collection consists of the ink drawings, rough drafts, newsprint copies, and reproductions of cartoons made by long-time Oregonian political cartoonist Art Bimrose during his career.

Ronald Glenn Callvert (1873-1955) was associate editor of the Oregonian and won a Pulitzer Prize for his 1938 editorial "My Country 'tis of Thee." Collection includes newspaper clippings of Callvert's editorials and features; Pulitzer Prize announcement and congratulatory letters and telegrams; Callvert's post-retirement writings; retirement card with an Art Bimrose cartoon; correspondence of Ronald S. Callvert regarding R. G. Callvert's career.

Captain George Hall Flanders (1821-1892) was brother-in-law to John Couch and a prominent Portland, Oregon, citizen. Collection consists of a eulogy by Reverend William H. Stoy, delivered at Trinity Church, Portland, and "In memoriam," 1892, reprinted from the Oregonian newspaper, Portland.

Business records of the Oregonian Publishing Company. Includes financial, legal, and organizational documents; subject files covering Oregonian financial interests; reports, studies, and surveys; photographs; in-house publications; and limited correspondence and other documents from Henry Pittock's time as owner and publisher.