Subseries I: Personal Diaries, 1880, 1914

This subseries consists of two items: a facsimile of a travel diary kept by Henry Clay Frick during his first trip to Europe in 1880, and a friendship calendar compiled by his daughter for the year 1914. Henry Clay Frick did not keep a regular daily diary in his own hand, but the household diaries for his New York residence at One East 70th Street often read as though they were written in his voice. The household diaries are not part of this subseries, but can be found in the One East 70th Street Papers.

Items in this subseries are arranged chronologically.