File Glass-plate negatives, mill, burner (2), 1903 Box 1, F 14 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 6 (Accession#3072 - Trelfa Collection Series 6, Sepull Glass Negatives)
File Film negatives, Alpena, railways, trains, homes (12), undated Box 1, F 15 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 2 (Accession #3074, Voegel Fish Hatchery/Boulton)
File Glass-plate negatives, Alpena, buildings, fairgrounds, streets, parade (5), 1887 Box 3, F 15 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 3 (No Accession#, Unknown Trelfa Collection)
File Glass-plate negatives, Alpena, saloon (2), undated Box 2, F 15 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection - Series 1 (Accession #3071 - Boulton Collection)
File Glass-plate negatives, ship, river, lighthouse, barge (2), undated Box 1, F 15 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 6 (Accession#3072 - Trelfa Collection Series 6, Sepull Glass Negatives)
File Film negatives, Alpena, homes (12), undated Box 1, F 16 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 2 (Accession #3074, Voegel Fish Hatchery/Boulton)
File Glass-plate negatives, Alpena (4), 1916, undated Box 2, F 16 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection - Series 1 (Accession #3071 - Boulton Collection)
File Glass-plate negatives, Alpena, toboggan, fairgrounds, streets, Mackinac Island, encampment (5), 1887, undated Box 3, F 16 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 3 (No Accession#, Unknown Trelfa Collection)
File Glass-plate negatives, ship, river, ice, horse (2), undated Box 1, F 16 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 6 (Accession#3072 - Trelfa Collection Series 6, Sepull Glass Negatives)
File Film negatives, Alpena, homes, hatcheries, streets (12), undated Box 2, F 17 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 2 (Accession #3074, Voegel Fish Hatchery/Boulton)