When erected in 1889, this building housed the Littleton Public Library and the Christian Science Society, in which R.D. Rounsevel was prominent.
Its tenants included diverse retailers, insurance offices, the Republic-Journal newspaper, and photography studios.
Photographer Julia Eaton made a noted portrait of poet Robert Frost here.
A native of Charlestown, Royal Dearborn Rounsevel (1830-1907) came to Littleton in 1851.
He traded timberland and owned a hotel in Carroll, while operating a tannery, farm and merchandising ventures in Littleton.
This wood-frame structure survived fires in 1924 and 1949 that leveled its neighbors to the east.