The various census indicate he was from Onchan 1843. The only one that fits is:-

1851 census at Kiondroghad ( Onchan Village)

John Callow 37 Shoemaker Onchan
Elizabeth (Cubbon) 30 wife Malew
John 10
Thomas 8
Anne 6
William 2
Joseph 4mths.

Henry 8 Elizabeth 5 Margaret 2 were added before the 1861 census.

John and Elizabeth were still in Onchan in 1881 but according to iomfhs.im index they were buried soon after.

Len Faragher