Hi Don - how nice to meet you, cousin!
I have a lot of info which I am happy to pass on to you. I will try and PM you but it sometimes doesn't work until you have 3 posts.
I haven't found much about your 3g grandfather however have Jane's parents' names - father George Anson THOMPSON and mother Ann VIVIAN. Jane's family appeared to have had Naval connections - mainly as administrative staff rather than sailors.
John's family were millers and corn merchants around Bedhampton, Havant, Warblington, Emsworth (near Portsmouth). They were quite well-off, and were a Catholic family. (No money came down to my lot LOL). John and Jane's first two children were baptised in Bedhampton but the others, including John Sone MIDLANE were born at West Camel, Somerset. I would love to know why they moved - seems a long way.
After they moved to Mere they becams staunch Anglicans, with a number of the children married in Mere church and John and Jane are buried there. The churchyard is grassed over now with hardly any headstones so I wasn't able to locate the actual graves when I visited last year. I have to say the stained glass window is quite impressive!
I see your grandmother Annie was married in Mere church.
Will try and PM you.
Judith