Biographical notes:
Born during the voyage of the 'Isabella Watson' which left London, ENG on 3 Jan 1846 & Plymouth on 18 Jan 1846, arriving at Port Adelaide, SA, AUS on 14 May 1846. The ship was built in 1840 & registered in Glasgow in 1842. It carried a total of 230 emigrants.
'Denance' was registered as his 2nd name but some sources give the more likely 'Duance'.
Reference documents:
1846 birth registration index record
1910 death registration index record.