Hi,
Here are a few PO and other entries for the Mansfields. Interesting, but not really helpful.
1856 electoral roll JOEL MANSFIELD, Boroondara Division ( this covers Kew and surrounding suburbs) Bricklayer. Freehold house and land.
1862 Sands McDougal. JOEL MANSFIELD Carpenter . Stanley Sreet West Melbourne. He is the only entry for that year.
1868 - The marriage year -Sands McD. JOEL MANSFIELD carpenter 69 Stanley Street West Melbourne.
J. Mansfield, Builder. FITZWILLIAM STREET, KEW.
Henry Mansfield Andrew Street Prahran.
Mrs Mansfield 131 Moor Street F.
Mansfield W. Builder, Kew.
Fitzwilliam Street is a leafy pleasant street with some large blocks. No street number was listed.
Sue