An important Western Pennsylvania family, among the first west of the Alleghenies to have gunpowder works and a large scale gun manufacturing company, with land holds that included much of Coraopolis and Moon Township, besides property in Noth Carolina and Kentucky, these letters and documents chart the family's interests and sensibilities. 

A look at Pittsburgh from the point of view of an artisticly minded Beltzhoover photographer in the late 1920s, capturing Pittsburgh's grit and beauty, and also displaying the hallmarks of modernist influence.