Hi Sylvia, I have 3 Richards in my tree, unfortunately none born close to 1766 (1744, 1798 & 1801). However, since families often use the same names over and over, it might help you to know that my Richards were all born in South Normanton, Derbyshire. Maybe yours is a cousin or something. Do you have access to the South Normanton parish records? There are also a lot of Marriotts in Pinxton and you can write to the family history society there and they will do lookups (takes a while though): email@example.com. Hope this is of some help to you.