Materials relating to James M. Brown (1844-1922), who emigrated to Silverton, Oregon, as a child in 1846, and to other members of Brown's family, particularly his son Percy L. Brown (1876-1934). Papers include correspondence, financial records, and ephemera, and much of the material deals with Percy L. Brown's educational, business, and social activities.

Collection includes correspondence, primarily to Owen Brown from various members of the Brown family, regarding family history and a book on the Tabitha Moffat and Clark Brown family by Ella Spooner; and some miscellaneous family documents. Owen Brown was the great-grandson of Tabitha Moffat Brown.

Correspondence of the Tarbell and Brown families of Yankton, Oregon and Aroostook County, Maine. The bulk of the letters are from family members in Oregon, particularly Alice Tarbell Brown, Charles and Nancy Tarbell, and Lawrence Tarbell, to Everett and Anna Tarbell in Maine. The collection also includes research materials relating to Yankton and St. Helens, Oregon, and to Yankton Church.