1. MS Facsimile 673/1 Reference (shelfmark): MS Facsimile 673/1 Title: Thoreau's Fact Book in the Harry Elkins Widener Collection in the Harvard College Library Annotated and Indexed by Kenneth Walter Cameron Scope & Content: Volume 1 Collection Area: Western Manuscripts Languages: English Date Range: 1966 Extent: 1 volume
2. MS Facsimile 673/3 Reference (shelfmark): MS Facsimile 673/3 Title: Thoreau's Fact Book in the Harry Elkins Widener Collection in the Harvard College Library Annotated and Indexed by Kenneth Walter Cameron Scope & Content: Volume 3 Collection Area: Western Manuscripts Languages: English Date Range: 1966 Extent: 1 volume
3. MS Facsimile 676/2 Reference (shelfmark): MS Facsimile 676/2 Title: Thoreau's Fact Book in the Harry Elkins Widener Collection in the Harvard College Library Annotated and Indexed by Kenneth Walter Cameron Scope & Content: Volume 2 Collection Area: Western Manuscripts Languages: English Date Range: 1966 Extent: 1 volume