Karl F. Overholt diaries, 1911-1933

23 volumes. Overholt, a nephew of Henry Clay Frick, was employed by the family to handle various legal and financial matters. His diaries contain entries regarding meetings, taxes, checks issued, office tasks, and staffing. Clippings are occasionally pasted inside. Overholt continued to work for the family until his death in 1938, but he appears not to have maintained a diary after 1933.

Some material inserted into these volumes has been removed to a box at the end of the Overholt diaries.