In message , Richard J.
writes
Following on from another thread which spelling is considered
correct, "St. James' Park" or "St James's Park"?

The latter. See the other thread!

I did some research last time this came up. The oldest map [1] I could
find that has relevant names for the area, mentions the park as St
James's, ditto for nearby St James's Square and Market.

[1] Richard Blome's map of 1689

--
Roland Perry