blindflorist on Family Tree Circles

Can anyone help me with an acurate birth dates for the couple noted here. John Thew born Barnard Castle 1799? Married Mary Raey 24th November 1823 Mary at StAndrews Newcastle on Tyne. Mary born 1800 Newcastle on Tyne. As you can see I have most of it but need the full birth details .
Yours Faithfully
Alan Thew