Further to ItsMe's comment, I would advise you to not use a naming convention that allows spaces in names. These will come back to haunt you with syntax issues. Use alphanumeric and "_" characters only.
BirthDate or DateOfBirth type of name
Do you have an overview description of things involved in your genealogy related database. Often a good idea to write a description of what the proposed system will do; what info is expected to be available.....
This
free data model may be useful to you.
The
facts concerning the data model are here.
Good luck with your project.