Although no longer in the pastorate of any one congregation, he continued to preach as an evangelist throughout the area. A list of the Iowa and Colorado towns in which he preached can be found on the Chronology page in this guide. In July 1951, the Hartmans celebrated their sixtieth wedding anniversary. Less than a month later, on August 10, Rev. Ira Hartman died at their home in Longmont. This collection consists primarily of over 250 sermons and sermon outlines by Hartman.
Many sermons have dates and places of presentation jotted in the margins.
In these cases, the earliest date appears on the folder. These have been kept together to illustrate the range of topics and texts which Hartman night use in any particular series of meetings. The specific rallies in question have been tentatively dated 1917, which puts them in the same year that evangelist Billy Sunday was drawing huge crowds in New York City. Lists of sermons within these volumes are found in each folder. The diaries are principally one-line, factual entries apparently filtered from news broadcasts through Hartman onto the diary pages.