Hi Ann,
A different sailing of the Woodbridge, but I have found some details on your Lewis, please reply if you need more info/source for any:
Lewis Humphreys aged 29 yrs convicted for 7 years transportation at Montgomeryshire, Wales. Sailed 10/10/1939 aboard "Woodbridge" arrived Sydney, New South Wales 1840; was boot & shoemaker.
Issued Certificate of Freedom 27/8/1846 #46/813 (contains full description of Lewis)
Possible Marriage in 1846 to Rose Newman at Scots Church Pitt St Sydney (Presbyterian) and son William born 1852 (only child of this marriage).
Possible Death 1853 in New South Wales.
Trust this is your fellow.
Regards
Kerry