Not exactly an answer to your question, but have you found on NLA's digitised newspapers - The Brisbane Courier, Saturday 26 August 1893 - McWILLIAM - HARDEN.-On the 16th August, at the Wesleyan Church, by the Rev. J. Bowes, Thomas Moore William, eldest son of John Richardson McWilliam, Coonamble, Now South Wales, to Olga Christine, daughter of Carl Harden, Rockhampton. http://ndpbeta.nla.gov.au/ndp/del/home . Perhaps also try MacWilliam and M'William. Cheers Barbara