Defences of Charleston Harbor - Illustrated report prepared by Gilmore for the engineer and artillery operations. Published in 1868. - http://quod.lib.umich.edu/cgi/t/text/text-idx?c=moa;idno=AHE3910
Materials Report - Facsimile of Gillmore's report on the compressive strength, specific gravity, and ration of absorption of the various kinds of building-stone from different sections of the United States. Prepared for the United States Army in 1874. - http://quod.lib.umich.edu/cgi/t/text/text-idx?c=moa;idno=AGL6580