William and Alexander Ireland - they were brothers born in Tayport, Scotland - William on 4 July 1827, and Alexander on 26 July 1833.
They had eight siblings, including David who was born in 1837. He emigrated to Victoria in about 1884.

The other siblings are:

Mary (1823),
Hellen (1825),
Ann (1829),
John (1831),
Helen (1835),
George (1840)
and George II (1843).

Roots