The 1911 Census lists Robert as a 'Nurse Child.' Fanny Pritchard was 54 years old when Robert was born. It is unlikely that Herbert and Fanny were his parents.
Sources
"England and Wales Census, 1911," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XWFP-945 : 28 November 2018), Robert Pritchard in household of Herbert Pritchard, Dagenham, Chadwell Heath, Essex, 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.
Is Robert your ancestor? Please don't go away! Login to collaborate or comment, or contact
the profile manager, or ask our community of genealogists a question.