Hi Bruce,
Source: Glos Archives (GA) PFC 86 IN 1/10 3, Entry No 692, Cirencester, Marriages:-
William AVERY of the parish of Coln St Aldwyn and Ann WAKEFIELD were married in this Church by Banns this 16th day of October 1799.
Signed: William AVERY 'X' his mark & Ann WAKEFIELD in the presence of James MILES & ? GREGORY (could be Stella).
You were somewhat lucky in that my next lookup was at Coln St Aldwyn, so I transcribed all the baptisms I found for the AVERY family:-
William & Ann AVERY, a Labourer of Coln St Aldwyn:-
07/09/1800, Ann AVERY
21/04/1804, John AVERY
27/04/1807, Joseph AVERY
18/05/1810, Thomas AVERY
16/05/1813, James AVERY
30/07/1815, Thomas AVERY
Robert & Ann AVERY, a Labourer of Coln St Aldwyn:-
09/02/1812, Sarah AVERY
07/11/1813, John AVERY
I couldn't find a marriage for William & Ann AVERY.
Robert AVERY married Jane MAY at Ampney Crucis, October 29th, 1810, by Banns.
Victor