This collection is comprised of correspondence, sermons, clippings, articles, postcards, poems, and manuscripts. The manuscripts cover topics such as biographies, camp-meetings, history of the denomination, sermons and sermon notes, devotionals, and published texts.

This collection contains many of Drury's publications: his biography of Otterbein, as well as a number of pamphlets; photographs; Drury's letters that he authored, and letters he received; letters or collections of old works that Drury kept for himself.

Among his letters, most of them are demonstrative of the kind of inquiry he was making into Otterbein and the history of the United Brethren Church in Christ. For the kind of histories that Drury was writing, he was meticulous about dates and the need to keep them straight in order to construct a coherent history. Much of his personal notes contain lists of dates, where it is clear he was hovering over the page attempting to connect disperate material or events. The largest collection of letters comes between 1883-1884, where Drury was ostensibly doing the bulk of his historical writing and attempting to contact any living witnesses available.

The photographs of this collection are largely unmarked, though there is at least one picture of A.W. Drury that is identified.

Drury's interest in Christian apologetics eventually led to an interest in things secular, as he later developed an interest in behavioral patters and their relation to religion; this led to his interest in William James, and the pamphlet he wrote on Psychology of Religion.

This collection primarily documents the work and ministry of the Evangelical Church's annual conferences and local churches from the middle nineteenth century to the middle twentieth century. To a lesser degree there are records that reflect the ministry of the general church as well. There are other records that pertain to filial denominations such as the Evangelical Association, United Evangelical Church, Church of the United Brethren in Christ (United Brethren Church), and the Evangelical United Brethren Churches are also found in this collection. Leedy was an avid collector of church related information so that the topical landscape of this collection is broad enough to cover information ranging from local church ministries and histories to denominational theological beliefs and social concerns. Most of the paper records center on church work in the Ohio region though not to the exclusion of other geographic areas within the continental United States and Germany. All in all this collection provides a nice overview of the diversified life within the Evangelical tradition and is an excellent resource for those who wish to understand more fully the Evangelical Church's historical influence within the ongoing traditions of United Methodism.