This collection of booklets relates to tourism in Yellowstone and dude ranches in Wyoming These booklets are representations of tourism to Wyoming in the early 20th century. They contain pictures and descriptions of Yellowstone and dude ranches.

The Meadowlark Audubon Society, Big Horn Chapter was founded in 1999.  The collection consists of documents and photographs relating to the operation of the club and the activities of its members.

George Allen Dean was born on April 9, 1881 in Dedham, Massachusetts. During the summer of 1903 he came out to Yellowstone Park to travel and work. This collection includes photos, a journal, and letters to his mother from summer of 1903. The collection also has a photo album with pictures between the years of 1900 and 1904.

The collection consists of photographs of the Winninger family and the YU Ranch on the Greybull River during the years 1920 to 1940. The Winninger family was made up of Joseph Winninger, Mabel Buell Winninger and their four kids. John Joseph "Jack" Winninger was the oldest, born in 1926, and the donor of the collection with his wife JoAnn Winninger. The YU Ranch was primarily a sheep ranch, and in the late 30s also became a cattle ranch.

Photograph of Walter Bennett in a suit, tie and cowboy hat, circa 1923.