The collection contains a significant amount of material pertaining to the Delaware and Hudson Railroad (D&H) where Harry E. Schultz, Jr. was employed as a civil engineer for more than 40 years.
The New York, New Haven, and Hartford Railroad Company (NH) operated from 1872-1968. This collection records names, builders, repairs, renumbering, and dates of service of New York, New Haven, and Hartford Railroad Company locomotive engines since.