6. Trips. Mostly unidentified places. Towns, waterfalls, caves, mines, Jequitinhonha River, Mandanha

The photo collection in the Rolfs Collection is comprised of both loose photographs and albums. The loose photographs include pictures taken in Brazil, some family photos, and photos taken in the United States. Those from Brazil include views of the Escola Superior de Agricultura e Veterinaria at Viscosa, many and various pictures of agricultural crops, methods, and workers, and a small group of professionally done photos of Rio De Janeiro. One of the agricultural subjects concerns the cacao plant and shows the entire process from small plants through harvesting, transport, and storage. There are a number of photo portraits which apparently were sent to Peter H. Rolfs by friends and former students. Some of these are identified while others are not.

There are eight photo albums. The albums contain a variety of photographs. Following is a list of the albums with their assigned numbers and the subject matter in each.