Thanks for posting the picture of your finished treasure!
As a teenager I slept under a DWR that had been gifted to my dad (or possibly traded for legal advice) at some point prior to my parents getting married in 1938.
I've been collecting fabrics to make one and have found several that could have matched that original heirloom.
I've actually purchased a couple of fabrics that were in quilts from my childhood in the 1950s.
So glad you were able to find something that fit with your lovely treasure. May you have many years of enjoyment of its beauty!