I am coming over to Suffolk next week on a flying visit but will make time to visit Rattlesden and Hitcham, and hope also to get to Brettenham too.
When I was 7 (around 1945) My mother took me to see "Auntie Swan" at Birds Green Rattlesden
I doubt it has changed much.
Please just keep an eye out for me.
Who she was is an enduring mystery.
Her son John Swan was age about 13 for he could climb trees even better than my big brother (

It might have been Ivy Cottage.
Other places they lived are
Elm Cottage, Wetherton, Stowmarket Bildeston, Ipswich then Gloster, then maybe went to Sweden
I think they originated at The old rectory, Alpham Stone Bures Suffolk
I know it is a long shot, but nothing ventured nothing gained and no trace of family for John Swann
Many thanks
Esdel