Cedar River Watershed - 14 lakes 9-30-1954 - duplicates of 280C by Ober 1911 and 43 by chew in 1939 - prints and negatives - 03848-03853, 1954 - 1954, Box: 2, Folder: 03848. Water Department Photographic Negatives, 8200-13. Seattle Municipal Archives. https://leglas100/finding-aids/repositories/2/archival_objects/194063 Accessed June 02, 2026.