Hi Jane,
If you do plan to visit Suffolk, the records pertaining to the villages that you are researching are held at Bury St Edmunds branch of the Record Office.
Cowlinge (say Koolinj), Poslingford, Clare are all within easy reach of each other (by own transport).
I like Clare, nice place to wander around, beautiful church and right next door to it is The Ancient House which is a museum and the local tourism office in the summer season. Our dog loves a walk in the country park which is where the castle was at one time, and it also uses the old railway track for some of the walks.
In July there is a wonderful Craft Fair in the grounds of the Catholic Priory, and you can visit the Priory and their chapel and the many craft stalls.
Pat ...