The collection pertains primarily to U.S.-Panama treaty negotiations relating to the Panama Canal and a proposed interoceanic Atantic-Pacific sea-level canal. The collection consists of copies of documents held by the St. Louis University Law Library.

This collection contains correspondence between Irish freedom fighter Dan Breen and John S. Monagan, Congressman from Connecticut, offering considerable insight into Breen’s later political and social thinking as well as recollections of the struggle for Irish independence from Great Britain. It further includes a few photographs as well as reminiscences and diary entries by Monagan regarding meeting Breen in 1948.

The collection documents the careers of both Lynd Ward and May McNeer. It includes correspondence, manuscripts, and subject files related to their publications, exhibitions, and other activities.

See the External Documents section below for a detailed inventory to the collection.

This collection contains over two decades of correspondence between writer Anthony Powell and his American friend John S. Monagan as well as various magazine and newspaper articles relating to Powell as collected by Monagan. Also within the collection are numerous photographs of Anthony and Violet Powell at their home, the Chantry in Somerset, England, mostly taken by Monagan during visits made with his wife Rosemary in 1981, 1987, and 1988.

This collection contains correspondence between John Monagan and the Powell Family and correspondence between Monagan and others regarding Powell. Further, it includes manuscripts/articles on Powell written by Monagan and others; papers related to the Anthony Powell Society; photographs of the Powell family and related subjects; and materials from the Georgetown University Library exhibition and symposium celebrating the Anthony Powell centennial in 2005.

The Cornelius Van H. Engert papers 2 comprise a portion of the personal papers of Cornelius Van H. Engert, a U.S. diplomat who served in a number of important diplomatic posts. The collection includes correspondence, diplomatic memos, printed materials, speeches, and photographs.

The Daniel E. Power, SJ Papers predominantly hold material created and collected while Power was vice president of and involved with GWETA (the Greater Washington Educational Television Association), the parent organization of WETA-TV channel 26. The papers also include items that reflect his personal and spiritual life.

The John Dooley, SJ Papers contain reminiscences written between 1865 and 1873 detailing his service as a Confederate soldier in the First Virginia Infantry Regiment (1862-1863) and subsequent imprisonment at Fort McHenry and Johnson's Island (1863-1865). Also includes an essay he wrote on secession (circa 1861), poetry (1870-1873), and a few pieces of correspondence (1860-1909). Materials are arranged in a rough chronological order except for the bound reminiscences in folder 8.

Correspondence, drafts, and other ephemera related to the writing and publication John S. Monagan's biography of Fr. Horace B. McKenna entitled Horace, Priest of the Poor (1985). Also contains audio cassette recordings of interviews used by Monagan for the work, photographs of many interview subjects, and six interview transcripts.