A bit of research on the marriage witness Emily Jane JOYCE suggests that she was the wife of a Richard James JOYCE and that they lived in the Uxbridge area.
Birth, Sep qtr 1873
Emily Jane BLOWER
Uxbridge 3a 29
Marriage, Mar qtr 1907
Emily Jane BLOWER
Richard James JOYCE
Uxbridge 3a 39
Death, Mar qtr 1954
Emily Jane JOYCE aged 80
Uxbridge 5f 120
ETA: Emily seems to have been a daughter of Joseph and Isabella BLOWER of Harefield, so presumably related to William George BLOWER in some way (a cousin, perhaps?).