The letter press books are, for the most part, chronological in arrangement though there is come overlapping of dates between volumes. The first two deal almost entirely with the law firms. The last two were the private letter books of Ewing. The loose correspondence, which follows the letter press books, is also arranged chronologically. A few of these pieces are typed copies which were supplied by Thomas Ewing, III, in 1909.
Undated material follows dated.
Supplied dates have been placed in brackets in the upper right hand corner of the first page of undated letters. A question mark in the brackets denotes some dissatisfaction with accuracy of the supplied date. Microfilm targets have been kept to a minimum and are used only when necessary to indicate enclosures, retakes, et cetera. Targets containing editorial information, except for the introduction which appears on both rolls, have not been included. An index to addressees in the letter press books appears at the beginning of each roll.