Tuhia he haere tonu mo tenei pene - I te mate uruta o te tau 1853-54, i kohia e Farr etahi atu taunakitanga tatauranga. I te wā o te mātauranga arotahi ki te pakarutanga o te mate huka o Broad Street i te tau 1854
, i whakamahia e te tākuta John Snow ngā raraunga i whakaratohia e te GRO