Just noting re the 1851 census quoted how the two Eliza Pritchitt's relate to Theresa Green - her mother being Mary Ann Pritchitt, baptism and marriage being :
Baptisms St Martin Birmingham county of Warwick April 1825
1825 April 5th No 1209 born 16th November 1823
Mary Ann Daur of John Martha Pritchitt of Essex Street cabinet maker
0825 April 5th No 1210 born 2d February 1825
Emma Daur. of John Martha Pritchitt of Essex Street cabinet maker
1843 marriage St Mary Lambeth
No 373 10th December 1843
Edward William Green full age bachelor salesman of Princes Street
Father Edward Smithhouse Green



?? [I think should say Southhouse, but it looks like Smithhouse, and I can't make out his trade]
Mary Ann Pritchitt full age spinster of Princes Street
Father John Pritchitt brush manufacturer
in the presence of Charles

?pell, Eliza Pritchitt
Interesting to note the second witness is an Eliza. In the 1851 census the two Eliza's are her sister who was baptised St Philip Birmingham 17 April 1827 (Married Henry Swinburne 3rd June 1851) and fairly certain despite a slight age discrepancy, the other Eliza is her brother James Joseph Pritchitt's daughter :
Page 129
Baptisms St Mary Newington Surrey 1844
Sep 8th born July 29th 1844 No 1027
Eliza Louisa D of James & Susan Pritchitt of Kent St brushmaker
I think likely the following is Theresa's mother and sister - on 8Jan1879 the immigrant ship Salisbury arrived in Adelaide, South Australia and amongst the passengers are:
Single Women
Mary Ann Green - domestic servant
Jessie Green - domestic servant
Theresa's other sister Ada Kate Southhouse Green had been in Australia for a year by then and information on Ada and her descendants can be found at
http://bruerfamily.com.au/index.htm