I am confused about this:
"One of Jjtjr’s records is of Edward Bertram’s marriage and one correctly provides information about Edward Bertram Staunton’s death in 1878 – I have a copy of his death certificate to confirm this. The other one listed for 1884 must be somebody else (a bit of a coincidence though as the age given is the same!) or else is an error in this record"
If Edward/Bertram died in 1878, how was he on the 1911 Census?