The collection consists of 10 bound volumes of administrative records, financial ledgers, meeting minutes, professional correspondence, product specifications, and clippings of the John A. Roebling's Sons Company of Trenton, New Jersey. Materials include three volumes of typescript copies of John A. Roebling's professional correspondence from 1831 to 1865 with Ferdinand Baehr, Charles Swan, and others, including some translations from the German. Also present are a company address book documenting the company's business relationships and contacts in the 1890s; a 1920 company manufacturing specifications catalog for wire rope, with two related pamphlets, inscribed by Siegfried Roebling; Ferdinand W. Roebling, Jr.'s business ledger of price estimates and product specifications for various orders and projects in the early 1900s; a minute book for the Roebling Construction Company (1899-1915) with related correspondence regarding its incorporation and dissolution; a volume of Monnot and Prior U.S. Patents for Compound Conductors (1821-1914), with correspondence interleaved regarding John A. Roebling's Sons Company's potential purchase of patents for wire rope manufacture; and a two-volume scrapbook on the German civil engineer and bridge-builder Karl Bernhard, with clippings in German covering his activities from 1896 to 1934.