Finding Aids

By the beginning of the nineteenth century, Pennsylvania was already a leader in the coal, iron, steel, railroad, and petroleum industries. As the manufacturing industries grew in the cities, so did the small businesses of craftsman and artisans that populated the surrounding areas selling their goods. These merchants played an important role in trade, community relationships, and the economy.  This is an artificial collection of account books, cash ledgers, and receipt books of nineteenth-century merchants of various industries in Pennsylvania. Minimal correspondence is included as well as a poem.  Mineral, iron and leather industries are represented as well as organ building which includes two treatises written in German.  

Wilhelm Melas (1869-1916) was an engineer and inventor who specialized in the design of furnaces and other industrial machines. He designed plant and foundry layouts, as well as developed materials for railroad stations. This collection consists of more than 700 drawings related to Melas’ work as an engineer, as well as a compilation of project notes, reference material, and data. This collection would be useful to researchers interested in industrial design, especially related to steel and iron production.