There seems to be a glitch in FreeBMD for this "page" - not all brides and grooms appear in pairs - I think this would be worth further investigation

possible marriage

Spouse ?
Name: Caroline Powell
Year of Registration: 1865
Quarter of Registration: Jul-Aug-Sep
District: Monmouth (1837-1939)
County: Gloucestershire, Herefordshire, Monmouthshire
Volume: 11a
Page: 71

the hand written index is reasonably clear 11a 7 - then maybe a 1 or 7 ??