Not sure if this will be of any help.
The marraige details record Allis o.t.p., though I couldn't find a birth for her and John was of Woodford Co, Northampton. Wit Saml Tarver and Elisha Guubins. It did have in brackets (No Marrs recorded) don't know what this means.
I did find some Checkley's in Claydon but they were between 1726 - 1733. After that no more. No Checkley marriages up to 1836.
Lottee