Hi Linda,
Sometimes it's best to start with what else can be proven.
Your Henry Knights may be recorded on England and Wales Census, 1891...
https://www.familysearch.org/ark:/61903/1:1:4FGW-CT2
"England and Wales Census, 1891," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:4FGW-CT2 : 3 May 2019), Henry Knight in household of Henry Knight, Bungay, Suffolk, England, United Kingdom; from "1891 England, Scotland and Wales census," database and images, findmypast (http://www.findmypast.com : n.d.); citing PRO RG 12, Suffolk county, subdistrict, The National Archives of the UK, Kew, Surrey.
If this is him, then perhaps it will give you a starting place for researching him? I find that tracing Censuses can provide heaps of data including where they were last recorded.
Last point; I've found it a nice surprise when I've located a British cemetery or burial record. They are out there but not always.