Cannot help with specific dates dob. Before registration (sept 1837) birth certs were not available so baptism dates are the only source unless by luck they were recorded at baptism.Think these maybe your people, no William.1841 - H0107 piece 1415 book 8Address, Pontmoralais Merthyr TydfilAll born in the county of GlamorganMary Mason 55Richard Mason 30 pudler?Nohomi Rees 13John Rees 10Maria Rees 6A few lines above not the same house there is also a richard Mason age 20, iron minerCas