Kowall, W.A.; Krahn, P.M.; Beattie, O. B.. “Lead Levels in Human Tissues from the Franklin Forensic Project”. International Journal Environmental Analytical Chemistry (Gordon and Breach Science Publishers) 35: 121. doi:10.1080/03067318908028385.
Kowall, W.A.; Krahn, P.M.; Beattie, O. B. (29 June 1988). “Lead Levels in Human Tissues from the Franklin Forensic Project”. International Journal Environmental Analytical Chemistry (Gordon and Breach Science Publishers) 35 (2): 119–126. doi:10.1080/03067318908028385.
Mowat, Farley (1973) (The Fate of Franklin). Ordeal by ice; the search for the Northwest Passage. Toronto: McClelland and Stewart Ltd. p. 285. OCLC1391959