Thinking about FindMyPast: I would like Worldwide (would come in handy for the American branch) as well as their Newspaper Archives (for the articles on Hubert b1866).
BUT, it is "Billed as a single payment of £46:99", and "Cancel anytime, no strings". So if I cancel within the 3 months, do they refund me the other 9months?
I think that "Cancel anytime, no strings" note refers to cancelling during the free trial, although FindMyPast are somewhat unclear on that (the cynic in me thinks it's deliberate).
Having been an FindMyPast subscriber for a number of years I don't think there's any way to 'unsubscribe' once your subscription has started; the only option being to disable auto-renewal which would happen at the end of the subscription period.
Is that subscription price for 3 months? If so, disabling auto renewal before the end of the period would mean you'd only be charged for the one 3-month subscription (I think). Checking the subscription prices they only offer me 1-month or 1-year subscriptions so I couldn't be sure what offers you're seeing.
You could always take up the free trial for 14 days and sweep through their records and newspapers in that time, and then cancel the trial before the time is up.
There are quite a few newspaper references to the Flowers family, given their prominence in Banbury, so I think you'd find even the free trial worth it.