marriage lookup please WIGMORE

[Anderson]

What we have is from a marriage cert on the 6 Feb 1838 in NSW . Jane WIGMORE born abt 1806 Cork Ireland. Her father was Daniel MEHEGAN & mother Mary THOMPSON. So we are presuming that Jane may have been married in Ireland to a ? WIGMORE because she was abt 32yrs when married in NSW and she was listed as WIGMORE & not MEHEGAN her birth name.
So would appreciate a kind soul looking to see if there is a marriage between our Jane MEHEGAN & a (Mr) WIGMORE).
Jane arrived Oct 1836 to NSW. On her shipping records showed as single, so maybe they divorced ? or he passed away (but then that should show widower)
Anderson