Johnston, J. Stoddard (1913). "Sketch of Theodore O'Hara". The Register of the Kentucky Historical Society. Frankfort, Kentucky: State Journal Company. p. 67.
Hamilton Smith (October 1964). "The Interpretation of the Arsenic Content of Human Hair". Journal of the Forensic Science Society. 4 (4): 192–199. doi:10.1016/s0015-7368(64)70199-5. PMID14342380, summarized in Sten Forshufvud; Ben Weider (1978). Assassination at St. Helena. Vancouver, Canada: Mitchell Press.
Parenti, Michael (1998). "The strange death of president Zachary Taylor: A case study in the manufacture of mainstream history". New Political Science. 20 (2): 141–158. doi:10.1080/07393149808429819.
Shillington, Patty (July 1, 1985). "Civil War relic re-emerges from ruin". The Miami Herald. Miami, Florida. p. 1D. Archived from the original on June 14, 2021. Retrieved March 11, 2021.
nih.gov
pubmed.ncbi.nlm.nih.gov
Hamilton Smith (October 1964). "The Interpretation of the Arsenic Content of Human Hair". Journal of the Forensic Science Society. 4 (4): 192–199. doi:10.1016/s0015-7368(64)70199-5. PMID14342380, summarized in Sten Forshufvud; Ben Weider (1978). Assassination at St. Helena. Vancouver, Canada: Mitchell Press.
Shillington, Patty (July 1, 1985). "Civil War relic re-emerges from ruin". The Miami Herald. Miami, Florida. p. 1D. Archived from the original on June 14, 2021. Retrieved March 11, 2021.