Richard was born in 1815. Richard Jennings ... He passed away after 1871.
Sources
"England and Wales Census, 1851," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:SGF5-YT3 : 1 November 2017), Richard Jennings, Marylebone, Middlesex, England; citing Marylebone, Middlesex, England, p. 7, from "1851 England, Scotland and Wales census," database and images, findmypast (http://www.findmypast.com : n.d.); citing PRO HO 107, The National Archives of the UK, Kew, Surrey.