Make That Putt| Ellen Griffin and Dorothy (Dot) Germain on a carasel (Hersheypark?)

A photo, picture, image I found of Ellen Griffin and Dot Germain on the internet.

Ellen and Dot are members of the Ladies Professional Golf Association.

In 1950 when the Ladies Professional Golf Association charter was signed by 13 women, why did Ellen Griffin who played on the Womens Professional Golf Association tour in the 1940's not sign the LPGA Charter that created the Ladies Professional Golf Association?