Many thanks to all for your contributions. However I am confused myself with the 3 Charles Lawson. I think this is the most correct conclusion.
1) Charles eldest b.c 1725 d.1807 , m to Alice Stephenson in 1770.
2)Charles - his son, b.1774 Whitby. Married Ann Smith, Knaresburgh 18 June 1798. Is a mariner.
3) They have son Charles, baptised 1800. Left £100 in his grandmother Alice Lawson's will.
This leaves me with Alice's granddaughter Jane. Whose daughter is she?? I will scrap the one I found from a marriage of a Charles Lawson to Elizabeth Eckins. Perhaps Charles (2) and Stephenson's other brothers John and Daniel married and had a Jane but I have not found their marriages in Family search.
maribel