« Reply #4 on: Wednesday 18 January 17 10:54 GMT (UK) »
I'm still struggling to identify which parishes I may need to try and how I might access the records? I have contacted Bucks Records Office to see what records they hold.
You could try some searches from Buckinghamshire Family History Society - see
http://www.bucksfhs.org.uk/index.php/database-searches. I believe the period you are interested in is probably complete so it would give you some idea of whether the person you are looking at in Northants could be the correct person. It would also give you some idea of which Buckinghamshire parishes you may wish to look at. I know the LDS have microfilmed some of Buckinghamshire's parish registers but not all so it may still be a trip to Aylesbury to view them.
If you have access to Ancestry, they have digitised the Phillimore's County Parish Maps so they would show you want parishes are where if you compare the Northants and Bucks maps. They can be browsed here -
http://search.ancestry.co.uk/search/db.aspx?dbid=8830.
(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