As the second 'marriage' never legally happened, the second 'wife' should have reverted to her maiden name.
So you are also looking for that name and/or a new marriage later on?
Added:
Just realised that death is also under Kirhoolie, sorry.
However, I can only see one birth for an Agnes Kirhoolie, but there is a marriage in Elgin in 1942, to Mr Driscoll, which is also what that death is also under.