I came across letters that Denise had written to a US GI during the war - specifically in June and August of 1945. Her address at that time was 7 Rue Miroy, Nice, France. The post mark on all three envelopes says Alpes Marme and Nice. The letters are written in French and I am planning to get them translated. There is a rough English translation included with the letters. The recipient had them translated back in 1945 and took notes.
I did locate a family tree with Denise Richier on ancestry.com. That Denise was born in 1922, which would fit my timeline of her birth. She is shown as married with one child. I believe that woman died in 1995. I'm just not sure it's the same woman.