I wonder if the tree on A*****y is correct - It gives Phyliss' middle name as Muriel not May

It gives her d.o.b. as 12 Dec 1921 and her death as May 2002 in Devon
There is a death reg Phyllis Muriel Isgar born 12 Dec 1921 Death May 2002 Torridge Devon
as she was married to William T Wilson surely her death reg would be in the name of Wilson?
and a birth reg for Phylis M Isgar is reg Sept qtr 1922 Cardiff -so the d.o.b. doesn't "fit" either
Suz