Yes- the Aunt she sent it to was also my Aunt- I have been in touch with the Aunt's daughter , my cousin, who passed away last month at age 89. We corresponded for years. The aunt passed on in 1974. There is nothing we haven't missed with the family .
They were Jewish. I have also tried to trace them through Jewish genealogy for the past 10 years. Nothing ----
So , I'm afraid we are looking at a dead end. My cousin in NY has every imaginable resource for tracing at his fingertips. Ancestry.com was a bust, as well as all of the other sources. The only way is to trace the bride by her first name , and that would mean finding every British soldier who married a girl named Eva in that time frame. If by some strange reason she changed her first name , then we are totally out of luck.