"England and Wales Birth Registration Index, 1837-2008," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:2FJK-NNZ : 1 October 2014), Irene Emily Griffiths, 1907; from "England & Wales Births, 1837-2006," database, findmypast (http://www.findmypast.com : 2012); citing Birth Registration, West Ham, Essex, England, citing General Register Office, Southport, England. GRO Birth Index, West Ham Vol. 4a, Page 438 q March 1907.
↑ "England and Wales Census, 1911," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XW31-7LB : 2 August 2017), Irene Emily Griffiths in household of Frank Griffiths, Portsmouth, Southsea, Hampshire, England; from "1911 England and Wales census," database and images, findmypast (http://www.findmypast.com : n.d.); citing PRO RG 14, The National Archives of the UK, Kew, Surrey.
"England and Wales Marriage Registration Index, 1837-2005," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVD8-6PKY : 8 October 2014), Irene M Griffiths and null, 1951; from “England & Wales Marriages, 1837-2005,” database, findmypast (http://www.findmypast.com : 2012); citing 1951, quarter 2, vol. 9C, p. 64, Birmingham, Warwickshire, England, General Register Office, Southport, England.
I was looking at this profile for Source-A-Thon 2016 and it seems quite dubious. I could not find a marriage record to EJH and it's an Arthur G Smith that marries Irene M Griffiths (not Hughes, as it would be if she was already married) in Birmingham in 1951. There are no matching birth records for JGH that have a mother's maiden name of Griffiths.