are you sure re dates - an irish born Wm Watson(Wattson in reg) m Elizth Vondy Braddan 1809 both of parish - James + children are in Peel in 1841 sahring accomodation with an 80 yrs Elizth watson, James a widower in Peel 1851 but bur Nov 1851 in Patrick age 62

It is possible that James is somehow related to a Richard Watson (mariner) who mar Christian Irvin in 1791 + had one child in German (Peel? as Irvin a Peel based fam) (there is a deed of settlement from James Irvin to Christian Watson in 1795 (I havn't quite reached this year yet in my summaries)

However I can't find any burial between 1832 (year of bapt of last known child) + 1851 for Elizth Watson als Vondey