Please check genealogy.az.gov there is a birth certificate for Florence Schoefflin who was born 9 Apr 1925. The spelling is different. This is a free site for births 75 years and deaths 50 years. There are also a lot of people with the name Pickens. I also checked Maricopa County Recorder, which could also help your search. There are records dating back to 1871. As for Good Shepherd, you may want to try the Phoenix Diocese, the info is in a previous post.
Hope this helps