Timothy Allan Westcott, KM - I agree. There is something wrong, either with Guy Westcott's DOB and date of death or with a missing generation. I know that I got my information for the brothers from online books and the NEGHS. I'll see if NEGHS has more information on the parents.
I have never seen a death date for Guy. Actually Guy has never been proven as his Richard and Stukley's father. I am posting a link to some excellent information on the Westcotts => http://www.wescottfamily.net/wesengla.html