Hi Hugo
Many thanks for looking. The only one I have found is a Moses JONES baptised Llanrwst 1774 son of Robert and Margaret. I can't decipher the abode but I has been transcribed as "Maethebrwd". How likely it is that this is mine, who can say. All I know is that Moses and his wife Ann (nee Hughes) seemed pretty determined to have a son named Hugh. 2 died before one survived. Would seem logical that they wanted a son named after one of their fathers perhaps or maybe it was taken from Ann's maiden name? As far as I know, Moses and Ann did not use the names Robert or Margaret for their offspring.
Robert and Margaret JONES of Maethebrwd also had William Bp 1768, HUGH bp 1769, Elizabeth bp 1771, (Moses bp 1774 as above), Thomas bp 1775, Evan bp 1778 and John bp 1783
Not quite sure where all that gets us in reality!!!!