sorry I added to it,just in from work and missed your reply
there is also a marriage of a William Mavin,in Loudon in 1846 but I can't seem to get any further with it
and now that I have calmed down after such an exciting and productive day, I just looked at that passenger list again. doh!
I looked 'below' Thomas Mavin, but missed looking 'above' his name.
William (40) and Robert (44) Mavin were also on the Tameneno. So , from my list of known children - about a mile up there somewhere I now have them all accounted for.
John stayed in Glanton (apart from a year or so in Lowick) then at some stage (either before or after the death of his wife, can't yet be sure) went to the US and died there
Richard - died in 1828, buried at Whittingham
Elizabeth - Married George Hornsby in 1828 at Lowick and they both went to the US in 1834, she died 1854, not yet sure when he died and they are not yet found on US 1850 census
Margery - went to the US in 1834 with the rest of them, died in 1848, buried at St James Episcopal Cemetery, Loundon County she is down on there as Margaret, but the birth year is right and the entry says she was Miss Mavin so I am reasonably sure, unless anything else crops up
Robert was on the Tameneno in 1834, will see what if anything I can find for him in the US
George, stayed in the UK, died 1845 buried at Whittingham
William - went to the US in 1834 - will poke round the records for him too
Thomas - went to US in 1834, died 30 Nov 1834 in USA.
Full house :-) Well, I still have a lot of work to do to see what else can be found but its good to have a general idea about all of them at this stage.
Thanks again
Boo