Formed by Wheeler and given by his family in his memory, this collection includes many black and white lithographs and chromolithography from the Boston firm of Armstrong and Company, active from about 1870 to 1900. Included are photographs and memorabilia of Armstrong, and pictures, documents, and notes relating to the Armstrong business, which for a time was the Lithographic Department of the Riverside Press, Cambridge, part of Houghton Mifflin & Co. (Print Department)
