The William Steinway Diary resides in the National Museum of American History's Archives Center as part of Collection 178, Steinway & Sons Records and Family Papers, 1857–1919.
See information from an exhibition on William Steinway's growth from witness to participant in history, including Diary passages shedding light on the 1863 Civil War Draft Riots and William's role in the creation of the New York City subway and company town of Steinway (closed April 8, 2011).
Online records are located within the Smithsonian's Collections Search Center, a powerful tool through which visitors can search for Diary-related topics, including Steinway materials, in more than 6.4 million records. More than 536,000 images, video sound files, and other resources are available from the Institution's museums, archives, and libraries.