RedRuth district

[ShaunJ]

It does seem that the birth was not registered.

[Gallicrow]

Have you tried looking through the scans of the parish registers on familysearch.org?
https://www.familysearch.org/ark:/61903/3:1:33SQ-GGFT-9ZZ9?i=41&wc=3CB7-FMS%3A138123201%2C140652101%2C140652102&cc=1769414
They've been transcribed and indexed, but you might find a possible error. I had a quick scan through the 25 or so pages for 1839 without success.

[josey]

There's a non-conformist baptism for son Joseph here
https://cornwall-opc-database.org/
Baptism Circuit   Falmouth, Wesleyan Methodist
Forename   Joseph
Surname   BOASE
Sex   son
Father Forename   John
Mother Forename   Betsy
Residence   Falmouth
Parish Or Reg District   
Father Rank Profession   
Day Month   04-Jan
Year   1843
Age   Born Decr 3rd 1842
Where Baptised   Falmouth W-M Chapel
but not John or other siblings.

Perhaps John & Betsey didn't get around to registering or baptising the early children?

[silver cloud]

Thanks everyone for your help, seems I might not get an answer but will keep trying
Cheers Silvercloud