1. G. Williford, S.K. Ofenstein, C.L. Perrault, Contextual history of the coastal fortifications at Fort Point, in: Walbach Tower, Battery Farnsworth, Associated Structures and Environs, Fort Point, New Castle, New Hampshire Integrated Cultural Landscape Report and Historic Structure Report, Section 1, draft version, 2005, 1–146, [Online] Available at: http://facilities-dc.sr.unh.edu/Project_Files/briefcase/mrf/Fort_Point_HSR/FortPointHSR-Part1-DRAFT1-13-2005.pdf.
2. C.L. Perrault, S.K. Ofenstein, Construction and developmental history of structures, in: Walbach Tower, Battery Farnsworth, Associated Structures and Environs, Fort Point, New Castle, New Hampshire Integrated Cultural Landscape Report and Historic Structure Report, Section 3, draft version, 2005, 181–492, [Online] Available at: http://facilitiesdc.sr.unh.edu/Project_Files/briefcase/mrf/Fort_Point_HSR/FortPointHSR-Part1-DRAFT1-13-2005.pdf.
3. American Cements;Cummings,1898
4. Cements, Limes, and Plasters;Eckel,1905