Joseph G. Evans was a member of the Oregon Volunteer Infantry, 2nd Regiment, Company B, during the Spanish-American War. Papers consist of a typescript copy diary, June-July 1898, regarding his journey from San Francisco to the Philippines aboard the transport Australia; and typescript copy correspondence, May-August 1899, regarding his combat experiences.

Papers of Erastus A. Smith (1868-1950) relating to his military and religious careers, including certificates, letters of recommendation, and reminiscences. Smith was a Baptist minister from Oregon who preached at churches in Oregon, Washington, and British Columbia, and who served in the Oregon National Guard in the mid-1890s and in the 2nd Oregon Volunteer Infantry Regiment during the Spanish-American War.

Albert M. Southwick was a native of Salem, Oregon, and served with the Oregon Volunteer Infantry 2nd Regiment in the Spanish-American War. Collection includes correspondence with family, 1898-1907, regarding army life and conditions in Manila, Philippines; rosters and booklets describing the Oregon Volunteer Infantry, 1898; and newspaper clippings regarding the Spanish-American War, 1898-1899.