The collection consists of correspondence documenting the work of attorney James L. Stanton as Chief Pardon Clerk (1882-1884) and General Agent (1884-1885) in the United States Department of Justice under Attorney General Benjamin Harris Brewster, along with a few related writings by Stanton. Among the many cases and events the letters document are the trials surrounding the Star Routes scandal involving United States postal officials, which Attorney General Benjamin Harris Brewster prosecuted, as well as a Western Union Telegraph quo warranto case, and the House of Representatives' Springer Committee investigations.

Correspondence includes handwritten and typewritten letters, both incoming and outgoing, telegrams, and interoffice directives, comprising over 200 loose items that total about 380 pages, as well as a letter press-copy book containing Stanton's outgoing letters from July 9, 1884, to June 30, 1885, which number over 150 in total and span nearly 300 additional pages. While there are several earlier and later letters, the bulk of the correspondence in this collection dates from April 1883 to December 1886. Frequent correspondents include Benjamin Harris Brewster, William Haight, and Brewster Cameron, though Stanton also corresponds with many others, including Senator James R. Young, Representative William Springer, and several United States attorneys and post office inspectors.

Most letters are professional in nature, regarding cases prosecuted or under consideration by the Department of Justice, including many references to mail routes important to the Star Routes graft; congressional hearings with which the department was involved; routine operations of the department; conversations with various local attorneys general and other officials across the United States; and political maneuvering surrounding government appointments and elections; though a few personal letters regarding Stanton's family and finances are also included. Stanton assisted Brewster very closely as reflected in Brewster's many letters and memoranda to Stanton that contain highly detailed, methodical instructions as to how to proceed on specific cases. While most letters are either written by or to Stanton directly, there are several related letters between third parties present throughout his correspondence.

The small amount of Stanton's writings included in the collection consist of drafts and notes on the topics of eminent domain, the appropriate response to insults to the American flag, the 1884 Republican National Convention, and a pardon case.