The Willard Weld Clark papers consists of letters written by various members of Clark's family between 1901 and 1909. The majority of the letters were written by Clark to his mother, Emma, in Lockport, New York. Other letters were written/received by his sisters Grace and Lucy; his father Benjamin; his cousin Robert; his fiancee/wife Betsey Bamber; associates in the mining industry; and other members of the U.S. Forest Service. The Clark collection is notable for the wealth of detail it provides about life in rural Utah and Arizona just after the turn of the century. During this time Willard Clark lived all over Utah and northern Arizona, but he stayed the longest in two cities; Roosevelt, Arizona and Logan, Utah. In his letters, Clark talked about what he was doing, as well as his interactions with local people, and gives an insight into social events and get-togethers. The letters are organized chronologically from 1901 to 1909. A few of the letters lacked specific dates, and an estimation was made of the approximate month. These letters are filed at the earliest possible date, and have a range of possible dates listed on them. A folder containing a 1912 letter from another family member to her mother, a folder with two of Willard Clark's business cards in it, and a folder with two letters with undeterminable dates, are located at the end of the collection.