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Colonel Paul Logan served as a US Army Quartermaster before and during World War II. His most notable accomplishment was the development of the "Logan Bar", or Ration D bar, an emergency chocolate ration manufactured by Hershey Chocolate.[1][2]


  1. Paoletti, Rodolfo; Poli, Andrea; Conti, Ario et al., eds (2012). "1". Chocolate and Health. Springer. p. 11. ISBN 978-88-470-2037-5. 
  2. Wilson, Philip K.; Hurst, William Jeffrey (2012). Chocolate as Medicine: A Quest Over the Centuries. The Royal Society of Chemistry. p. 119. ISBN 978-1-84973-411-0. 

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