I've come to a difficult point in my searches.
In 1816 are three baptism entries in St.Oswald's church for Roger Kynaston Wilde (b.1811), Henry Kynaston Wilde (b.1813) and Letitia Kynaston Wilde (b.1815), all children of Henry and Letitia Wilde. Roger is my wife's antecedent.
Considering that all three children (that I know of) have Kynaston in their name, I'm making the huge assumption that Letitia's maiden name was Kynaston. This is backed up by a marriage between Henry Wild and Letitia Kynaston in June 1810 at St.Sepulchre church in London. Roger was born in Feb 1811, 8 months later.
My problem is that I can only find 2 ladies called Letitia Kynaston. One is Letitia Frances Kynaston who married William Selwyn. I know it's not her because they married in 1801 and she died a Selwyn in 1842.
The other is Letitia Kynaston, daughter of Sir Edward Kynaston, 2nd bart of Harkwick and his wife Letitia Owen. This one was born in 1791 and baptised at St.Chad's in
Shrewsbury. Now this one apparently died a spinster in 1834 and was interred at Risby, Suffolk (where the Kynastons of Hardwick had another home). I've even written to Col.J.R.Kynaston of Hardwick, the current holder of the Hardwick title, and he can't find any information that suggests Letitia ever married.
Just to muddy the waters some more, I've found an entry in the National Burial Index v2 for Letitia Wilde, buried 8 Mar 1819, aged 28, at St.Oswald's church Oswestry. The age would put her as born in 1791.
This is what I believed happened.
I believe Letitia Kynaston got pregnant with Henry Wild in the summer of 1810. Her father (not only a baronet but also a Reverend) sent her off to London to get married. Roger was born Feb 1811 in Oswestry.
Henry was born 1813 in Oswestry.
Letitia was born 1815 in Oswestry.
I reckon that she was told to leave her young family behind to come back to the family home at Hardwick. Her death was somehow faked and she lived out the remaining 15 years as a spinster. I know it's more likely that there were two Letitia Kynastons, but without proof of two ladies I'm left with a conspiracy theory to explain the contradictory information I have to hand.
So despite all the documentary evidence to the contrary, I still suspect that 'my' Letitia was the daughter of Edward Kynaston and Letitia Owen. Can anyone shed some light on this, or find another Letitia who married a Henry Wild(e) in the early 1800's?