Why Can't I Find My Ancestor's Immigration?

As we research our family history, we all want to trace our ancestors movements, especially when they emigrated between countries.  As an Australian of British and European descent, tracing how and when my ancestors made the journey out to the colony is fascinating to me.  It can, however, be extremely challenging - it appears several of my ancestors might have swum out to Australia!

For a couple of my ancestors, making the assumption that they moved directly from A to B let me astray, in one case for several years.  The family of my great grandfather, James Nicholas Clark, came from Bristol in England.  They left England at about the time James was born and eventually settled in Melbourne, Australia.  It took me several years of fruitless searching for their immigration details before I widened my search to find the family first arrived in Launceston, Tasmania, which is where James was born shortly after they arrived.  The family spent at least 5 years in nearby Port Sorrell before travelling across Bass Strait to settle in Melbourne.

So why is it so difficult to find some of our ancestor's immigration records?

• Consider alternate spelling of their name.  The clerk who recorded their embarkation or arrival was unlikely to ask about spelling and just recorded the name as he heard it.
  
• If the person travelled in steerage/was an unassisted immigrant/was a crew member who jumped ship, the details recorded about them may be scant or non-existent.
• Females, children, servants and steerage passengers were frequently left off the passenger lists altogether.
• Did they migrate in stages?  Not everyone went straight from A to B – some visited other points along the way, sometimes taking years to arrive at their final destination.
• Prior to 1852, ship's masters were not required to record the names of unassisted passengers travelling from Britain to the Australian colonies.
• Port Phillip District of New South Wales was established on 10 April 1837.  Victoria was not proclaimed a separate colony until 1 July 1851.  Check NSW records if your ancestor arrived earlier.
• After 1923 records of people arriving by sea and air are held at the National Archives of Australia.
• Not all records have survived the passage of time and remained legible.