[Apostle Wilford Woodruff Journal] 19th I learned from the New York papers of the 11 & 12 instant that there had died in St Louis in 10 weeks from 7 May to July 9th 4,321 by Cholera 2,688 Pop 45,000. July 10 died 190. Also 100 deaths daily at Cincinnati.
I wrote A letter to Orson Pratt.
[source: Wilford Woodruff's Journal: 1833-1898 Typescript, Volumes 1-9, Edited by Scott G. Kenney, Signature Books 1993, http://amzn.to/newmormonstudies]