As a home ec project in the 60s I did something similar. I finished and assembled the state flower quilt my mom and her sister had started in the 30s for their hope chests. I used a green poly/cotton blend for the sashing and binding.
Not thinking about the age of the 30s fabric, we used this quilt regularly until the muslin of the flower blocks started to give way.
It did survive regular use and trips through the washer and dryer up into the 80s. Sadly it was in our house when it burned in 2000.