Oregon Historical Society
"As the steward of Oregon’s history, the Oregon Historical Society educates, informs, and engages the public through collecting, preserving, and interpreting the past . . . in other words, Oregon history matters. The OHS Research Library contains one of the country’s most extensive collections of state history materials, including approximately 25,000 maps, 30,000 books, 8.5 million feet of film and videotape, 16,000 rolls of microfilm, and 12,000 linear feet of documents. The Research Library’s photographic archives include over 2.5 million images from pre-statehood to the present day."