File Glass-plate negatives, snow, river, tannery, bridge (2), 1904, undated Box 1, F 12 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, farms, buildings, woods, streams (12), undated Box 1, F 13 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 2 (Accession #3074, Voegel Fish Hatchery/Boulton)
File Glass-plate negatives, Alpena, bicycle (4), 1887-1901 Box 2, F 13 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection - Series 1 (Accession #3071 - Boulton Collection)
File Glass-plate negatives, Alpena, maps, Long Rapids, Maple Ridge, Wilson, streets, buildings (5), 1886-1887 Box 2, F 13 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 3 (No Accession#, Unknown Trelfa Collection)
File Glass-plate negatives, street, bridge, dock, ship (2), 1903, undated Box 1, F 13 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, woods, streams, railways, trains (12), undated Box 1, F 14 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 2 (Accession #3074, Voegel Fish Hatchery/Boulton)
File Glass-plate negatives, Alpena, Partridge Point, people (6), 1911-undated Box 2, F 14 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection - Series 1 (Accession #3071 - Boulton Collection)
File Glass-plate negatives, Alpena, streets, buildings, churches, fairgrounds (5), 1886-1888, undated Box 2, F 14 In: Trelfa Photographic Collection, 1886-1920, 1886-1920 » Trelfa Collection, Series 3 (No Accession#, Unknown Trelfa Collection)
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)