A large section of this collection consists of almost ninety years of correspondence between the Hartzlers and their friends and relations. It begins with some of Lucy's earliest letters as a young child. It also includes much correspondence dating from Coleman and Lucy's courtship. Later letters describe, in great detail, their days as missionaries, with Lucy striving to include almost every small detail of their lives in her letters. As their sons grew up and moved away, the letters between them and their parents become a central feature of the collection. Also present is a signed letter from John Kennedy to Coleman Hartzler, dating from Kennedy's 1960 election campaign. The diaries are Lucy Padrick Hartzler's accounts of both missionary and family life in Africa and the United States. Written in long hand, they give brief insights into Lucy's devotion to her husband, family, and church. They are personal in nature and quite informative.

In the first diary there is a short genealogical record of the Padrick family (1851-1957). Those records that center primarily on Coleman Hartzler are located in the Sermons and Administrative series. The former series reflects Hartzler's philosophy of ministry, Christianity, hermeneutics, ethos, and world-view. Most of the sermons are in outline form and are type scripted. There are research notes attached to a few of the sermons. Some of the sermons are dated. Supporting documentation for Hartzler's sermon preparation is comprised of notes, proto-addresses, quotes, prayers, poems, and litanies. The latter series, Administrative, contains three primary elements. The records in the first element reflects his professional life as a minister and a missionary. Subjects include the mission work in the Congo, financial accounts, job descriptions, and the Collins Pension Fund.

The second element contains personal/family administration. The third and final element encompasses those travel documents that both Coleman and Lucy Hartzler used throughout their lives. The series containing photographs and biographical information are a mix of different family members both immediate and extended. It here that the genealogist will want to start their research. The photographs series cover the geographic areas of Africa and the United States. They are primarily portrait in orientation but also include a church facade (unknown) and weddings of variously connected relatives. The biographical series contains subjects that cover clergy, baptismal, and death certificates. Other subjects include various family members funeral services and education. The final series is located in a general file which covers such topics as pastoral records, African holidays, historic sites, friends, obituaries, and a historical calendar of the Congo mission. The bits of information contained within this small series fills the intellectual gaps left out by the preceding series.

The Mellony Turner papers primarily documents her life as a missionary in Bulgaria. There is a number of records on the American School for Girls in Lovetch, consisting of photographs, textbooks, yearbooks, and financial records. Turner's notebooks and lecture notes are included in the collection. It should be noted that there is a single folder containing information on closing the school. Turner kept diaries during her tenure in Bulgaria as well extensive correspondence. There are general images in both photograph and slide format ranging from the royal family of Bulgaria to her own family in the United States. Turner has a copy of a sermon by Bishop Burt; the bishop who had established the Bulgarian mission at the beginning of the twentieth century. Clippings and other types of publications reflect Bulgarian life and politics. There are eight lectures and a sermon written by Turner. Artifacts are personal in nature, reflecting the clothing and accessories of mid-twentieth century Bulgarian dress. There is a pot in the artifact series as well.

The other series within the collection reflects Turner's immediate family. The few records relating to her parents deal with their will and a folder of letters. Mellony's brother, Ewart Turner's three folders are related to his spying for the United States War Department during the World War II. Though he was ministering to a church in the United States during the war, Ewart was familiar with German communities in Europe and South America. The War Department had Turner collect information on Germans, in the U.S., who were thought to be a threat to national security during the war. This information is elucidated in a correspondence folder.