Albert Edward Prosser born 1878 in Lydney & wife Ada (General)
These appear to be the GRO entries for their deaths. The death certificates would give information about the cause of death.
PROSSER, ALBERT EDWARD 42
GRO Reference: 1922 D Quarter in LLANELLY Volume 11A Page 1069
PROSSER, ADA SOPHIA 28
GRO Reference: 1916 J Quarter in CHEPSTOW Volume 11A Page 12
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Peter