Birth of son Charles shows Thomas was from Middlesex, London

UNCONFIRMED:
Name    Thomas Clay
Gender    Male
Baptism Date    14 Apr 1816
Baptism Place    St. Dunstan, Stepney, Middlesex, England
Father    John Clay
Mother    Mary Ann
FHL Film Number    597604

Name:    Thomas Clay
Birth Year:    abt 1817
Age:    40
Death Place:    Victoria
Registration Year:    1857
Registration Place:    Victoria
Registration Number:    6877

Death Certificate:
District of Mount Ararat, Registration No 42 (BDM 1857/6877). 
Thomas Clay (Ararat ? decipher?), 24th September 1857 at Mr Wright’s, commissioner for the Crown Lands for the Wimmera.  Thomas Clay, Miner, male 40 years, shot himself accidentally.
Coroner, Ararat. 
Registrar – John Dobson
Inquest: Date - 20 Nov 1857, Mount Ararat. 
Inquest No - 775, 1857.
Signed by - F Girdlestone,

Aged 73 years at death

Name:    Maria Clark
Birth Date:    25 Aug 1834
Birth Place:    Tasmania
Registration Year:    1834
Registration Place:    Launceston, Tasmania, Australia
Registration Number:    5752


Name:    Maria Clark
Gender:    Female
Baptism Date:    24 Sep 1834
Baptism Place:    Tasmania, Australia
Father:    John Clark
Mother:    Maria (Kirk)
FHL Film Number:    1368234

Name:    Naria Brereton
Birth Year:    abt 1834
Age:    73
Death Place:    Coburg, Victoria
Father's name:    Clarke Jro
Mother's name:    Maria Kirk
Registration Year:    1907
Registration Place:    Victoria
Registration Number:    11758

Name    Maria Brereton
Death Date    27 Nov 1907
Death Place    Coburg, Moreland City, Victoria, Australia
Cemetery    Coburg Pine Ridge Cemetery
Burial or Cremation Place    Coburg, Moreland City, Victoria, Australia
Has Bio?    Y
URL    http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=42952048&ref=acom

Name:    William Clay
Birth Date:    11 Sep 1850
Baptism Date:    25 Oct 1850
Baptism Place:    Melbourne, Bourke, Victoria, Australia
Parish:    St. Peter's Eastern Hill
Father:    Thomas Clay
Mother:    Maria Clay

Baptisms Solemnized in the Parish of St Peter’s in the County of Bourke, Victoria, AD 1850:  No 579   Baptised October 25th, Born 11 September 1850, Child - William Clay, Parents – Thomas and Maria,
Abode: Little Bourke Street
Father a Butcher & Clergyman

Bendigo, Victoria, Australia

Charles Clay
Registered in 1856. 
Abode: Lygon Street, North Melbourne (Carlton South)
Birth Date: 23rd of July 1856. 
Father: Thomas Clay, aged 37 from Middlesex, London, England. 
Mother: Not Named