6 Feb 1853
St Martin in the Field, London, England
The cert (Folio#155) shows, for the Registration district of Westminster, 1853, Parish of St Martin in the Field, County of Middlesex. Groom: William Austin, full age, bachelor, Porter, resident of Snow Hill, Father's name and profession blank. Bride: Emma Clinton, full age, spinster, no profession, residence at time of marriage Snow Hill. Father William Clinton, 'Carrier or Currier'. Married in the Parish church according to the Rites and Ceremonies of the Established Church after Banns by Minister: S Flood Jones, Curate. Witnessed by H Clinton (assumed to be Emma's brother Henry), S Crossman (some connection to William?). 
There is no mention of this marriage on Emma's death cert.
on the "Roxburgh Castle"
from Plymouth, England
2 May 1853
Arrived Port Philip, Melbourne, Victoria, Australia
Passenger list shows William as "miner, 24" Emma as "wife, 25"
Also on board were Emma's mother Jemima Clinton and Emma's brother Henry 
Who were William's parents?
What happened to him after his arrival in Melbourne?
Emma remarries at the Emerald Hill Manse Dec 1855 showing herself as single, with no children living or dead from any former marriage
Lorna would welcome hearing from any descendants of William who may care to help see if DNA would turn up any clues as to his origins.
↑ Source #S1: P/copy of certified copy dated Feb 1994 from Frances R. held by Lorna Henderson
↑ Source #S2: Copy of passenger schedule received from Frances R. Feb 1994
Source S1 Certified copy of English Marriage certificate
Source S2 Passenger schedule "Roxburgh Castle"
WikiTree profile Austin-1468 created through the import of HENDERSONLornaAncestorsPlus1Desc4WikiTree.ged on Oct 18, 2011 by L Henderson.
It may be possible to confirm family relationships with William by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with William: