Hi, Is your aunt - still living ? deceased?
If deceased - An Obituary may be of some help
Registration of Death - Long form Death Certificate
[from Govt Vital Statistics Dept - ]
will show date and place of birth - names of parents including maiden name of the mother if known to informant.
Place of birth of parents [ may just show country]
Is VAUGHN - a married surname or a maiden surname?
Do you know the aprox. birth year for Shirley VAUGHN?
The reason I ask - There are many people who read the messages - some may not be your family members - or even family connected - but - may have at least some of the information you are looking for. so -any other information - might also be of help.
Cheers, Stella