1. These two postals were bought one at the pan American Exposition and one at Niagara Falls. Creator: Hollister, Howard K. (Howard Keys), b. 1889 Published / Created: 1903 February 11 Call Number: GEN MSS 317 Collection Title: Scrapbook Image Count: 1 Found in: Beinecke Rare Book and Manuscript Library > These two postals were bought one at the pan American Exposition and one at Niagara Falls.