He was later with the North American Commercial Company's government-regulated sealing activities on the Prybilofs and Unalaska. Eventually, he was involved with several railroad companies throughout the United States and Mexico. Most slides relate to the seal industry and Alaska. There are views of seal hunting, towns, land forms, wildlife, fishing industry, Eskimos, and Aleuts. There are also slides of related maps and charts.
Few items bear captions.
Many are damaged. Related photographic prints are in the BAE-USNM Photographs of American Indians and Other Subjects and the Department of Anthropology Division of Ethnology Manuscript and Pamphlet File. The stereograph, which was distributed by Langenheim, Lloyd, and Company, is of Indian portraits that hung in the Smithsonian Institution. His special interest was the tidewater area of Maryland where he surveyed along rivers to locate village sites. He also carried out excavations, the most notable being at Cononwingo, a large village site on the Susquehanna River.