A general question, let's say for arguments sake that her marriage to Mr. Aldrich was her 2nd marriage, would she then be recorded on freebmd with her first married name or her made name of Lyons?
Usually both surnames would be on the Register Indexes - she would be Elizabeth <Smith or whatever> formerly known as Lyons.
For example:
CARVER MARION MCGHIE BIRKENHEAD
DUFF MARION MCGHIE BIRKENHEAD
MCGHIE ROBERT M CARVER BIRKENHEAD
MCGHIE ROBERT M DUFF BIRKENHEAD
But, on the other hand, my gran didn't mention her maiden name for her 2nd marriage! 
And, just for completeness, there is no Aldrich marriage in the Isle of Man Indexes! 
Thanks! I've learned something new

I can't rule out the possibility of Elizabeth visiting South Africa again after 1932 (and possibly marrying there?) She was one of nine sisters, five of whom at one time or another lived in South Africa. Records from there are sparse but I did find a few for other sisters. Eldest sister Mary Frances Wilson (nee Lyons) who died in Birmingham in 1950 actually had her ashes scattered in South Africa. The Canadian obituary for brother George also refers to another of my brick walls, sister Winifred Josephine Lyons who is a doctor in 1955, in or near (I think) Johannesburg.
They're keeping me busy this lot!
