Born in Stirling, he moved to Birmingham in 1844, to work for John Frederick Feeney on the Birmingham Journal, and became a partner in it in 1852. Together they founded the Birmingham Daily Post, (now Birmingham Post) in 1857. He founded the Birmingham Mail with Feeney's son John Feeney in 1870.
|Wikimedia Commons has media related to John Jaffray.|
- "The History of BMI The Priory Hospital". BMI Healthcare UK. Retrieved 15 May 2017.
- Kidd, Charles, Williamson, David (editors). Debrett's Peerage and Baronetage (1990 edition). New York: St Martin's Press, 1990.
- Leigh Rayment's Peerage Pages [self-published source][better source needed]
- Birmingham City Archives, MS 1784, introduction (from  - search for John Jaffray).
- "Parishes: Studley", A History of the County of Warwick: Volume 3: Barlichway hundred (1945), pp. 175–187. Jaffray (accessed: 30 January 2008).
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