The Wallers were victims of the tragedy that befell the Dunbar when it sank off South Head in 1857 when returning from England. Since 121 people perished - and only one survived - the disaster touched many families in the colony.

Those who could be identified were separately buried, such as the Wallers. Their monument shows the Dunbar sinking into the waves.

For more information on the Dunbar go to http://www.records.nsw.gov.au/publications/aibs/067/page01.htm