The Papers of Johannes Van Loon consist of diaries, account hooks, and some miscellaneous papers spanning the years 1841-1956 but date primarily between 1862 and 1938.
The bulk of the collection consists of thirty-three diaries, 1862-1938, covering a seventy-six year period dating from Van Loon's early years in New Amsterdam. Every year is represented except 1864, 1877, and 1899. The diaries give insight into both the period of Van Loon's early settlement in New Amsterdam, and the development of his business in La Crosse.
Also included in the collection are account books which span a much shorter period of time than the diaries, 1885-1909, lacking only 1886. They serve as a running record of Van Loon's business and personal expenditures and receipts.
Both the diaries and account books provide sources for the study of horticultural and agricultural development.
In addition, the collection contains some miscellaneous papers including a few items of general correspondence with the Wisconsin State Historical Society's field supervisor; a certificate granting sale of land; a resolution from the Wisconsin Agricultural Experiment Association providing membership to Johannes Van Loon; and some historical sketches and newspaper clippings which relate some activities of the Van Loon family. There is also a digest of religious lessons for the elementary grades of the Dutch Reformed Church, January 27, 1841. Additional miscellaneous papers received later in the Archives and in the separate folder.
