This collection consists of general correspondence (composed in part of incoming and outgoing correspondence without reciprocal response), financial records, legal documents, subject files, writings reflecting McCorkle's various interests, clippings, and miscellany. The collection documents his efforts as a Presbyterian minister, educator, and social worker, and his involvement in the Socialist Party. The General Correspondence series (1911-1956) includes correspondence with other Presbyterian ministers, and with a variety of political and social organizations. Correspondents include the Intercollegiate Socialist Society, the Presbyterian Church, E.S. Gaddis of the Colorado Fuel and Iron Company, the United Mine Workers of America, the U.S. Industrial Relations Commission, S.K. Markley, Robert S. Lynd, the Montana Education Association, the Montana School Boards Association, the Montana Board of Public Welfare, and various other Montana state agencies. The Financial Records series (1915-1955) consists of receipts and statements. The Legal Documents series (1919, 1924) contains an agreement and a lease. The Subject Files series (1910-1956, undated) includes files on agriculture; the Intercollegiate Socialist Society; labor in Montana, WY, and Colorado; the Montana State Board of Public Welfare; the Montana State Industrial School and other Montana state institutions; the Montana Welfare Association; the National Popular Government League; the peace movement; the Presbyterian Church, including the WY Presbytery; public education; the Socialist Party in Conrad, Montana; McCorkle's testimony before the U.S. Industrial Relations Commission; and a file on Sunrise, WY. The Miscellany series (1910-1951, 1972, undated) includes a printed biography of Daniel McCorkle's father entitled "Rev. Archibald McCorkle, Pioneer Minister and Teacher of the Cumberland Presbyterian Church in Missouri and Texas, 1795-1870," by the Rev. Louis McCorkle, published by the Memphis Theological Seminary in 1972. A small subgroup, Dorothy Floerchinger Subgroup, contains correspondence (1967, 1973-1974) relating to Floerchinger's biography of McCorkle, To Speak of Love Was Not Enough, and hand-written fragments of the biography.