« Reply #8 on: Tuesday 14 January 20 23:02 GMT (UK) »
I think people have been using the Berks Marriage Index. I don't think it's complete yet (insofar as it ever can be) and I don't think I have the most up-to date version, but here goes.
There's a marriage at Brimpton between Francis DEACON and Jane HASSELL 27 Nov 1649, so that's where that's come from. (I very much doubt it is the Francis I mentioned as he would only be 12 at the time.) However, there's another Brimpton marriage for a Francis DEACON in 1607, so it looks as though they are a Brimpton family, and I would want to look at the Brimpton PRs before adding any of these.
Brimpton PRs don't start until 1678, earlier entries are from what is available from the BTs.
There is a Francis and Jane Deacon baptising children in Lambourn between 1650 and 1672, with burials for a Francis in 1706 and Jane in 1681. The burial for Jane does say wife of Francis of Lambourn so is obviously her. Their two sons named Francis (a third was apparently a daughter) were buried as infants in the parish, both entries say son of Francis.
The Lambourn baptisms do say Francis and Jane and the first is Jan 1649/50 suggesting possibly if the Brimpton marriage is correct it was a shotgun wedding. That said Brimpton is a bit of distance from Lambourn but not impossible.
I don't know though where Francis came from originally, could be Brimpton but I'm not sure if I've looked at the available BTs yet. Familysearch have digitised them so when I can get to one of the FHCs at some point I need to have a look. I've been researching the Lambourn family for about 10 years but not got much further due to lack of access to the Berkshire records.

As Sloe Gin says, the Berkshire Marriage Index is far from complete, I think it is up to v4 at the moment.
(KENT) Lingwell, Rayment (BUCKS) Read, Hutchins (SRY) Costin, Westbrook (DOR) Gibbs, Goreing (DUR) Green (ESX) Rudland, Malden, Rouse, Boosey (FIFE) Foulis, Russell (NFK) Johnson, Farthing, Purdy, Barsham (GLOS) Collett, Morris, Freebury, May, Kirkman (HERTS) Winchester, Linford (NORTHANTS) Bird, Brimley, Chater, Wilford, Read, Chapman, Jeys, Marston, Lumley (WILTS) Arden, Whatley, Batson, Gleed, Greenhill (SOM) Coombs, Watkins (RUT) Stafford (BERKS) Sansom, Angel, Young, Stratton, Weeks, Day