And who-ever completed the BC for Stanley Ann, couldn't spell the name of her mother?
It has to be MADELYN. The woman was interviewed - at least we can expect SHE would have known?

I'm ignoring the 'grandmother' tag. I very much doubt if she was anything of the kind...
The 1925 Kansas census shows 2 year old Madelyn Payne.
The 1930 U.S. census ( April 15) shows 7 year old Madelyn Payne.