Hullo Rellie. I think you will find Lynne J the original poster is in the same line of Todd's as yourself. My line is similar in fact too similar as there is much confusion with the two families living same areas and having same names. I don't think they were too worried about us trying to track them.
I have done so much research on my line which is directly tied to your own as has Lynne and another fellow from Sunderland. So there is a lot to find out.
The family goes way back in the area around Byers Green, in fact the earliest reference I have come back with dates to C1268. A Robertus and Guilimus (William) Todd were employed by the Bishop Palatinate of Durham to cut trees at the "BIERS". Later Changed to Byers Green around the mid 1500's when the addition of a Horse Racing Track was added to the area.
I have some doubts as to the Birth dates you have in your post Re Robert b1743 being the father of Christopher b1757, he would only have been 14 years old?
I have your tree on my file and will check it for dates and get back to you. I don't do much on here now, hence the delay in getting onto the post. You can personal message me if you want and we can exchange email addresses.
Regards
Noel Todd. Durham County, NSW, Australia.