Nice colors. I am using fabrics from my grandmothers stash from about the same time frame.
When you cut your fabrics are you using sissors or a rotary cutter and ruler?
If you have her fabrics, maybe you should wash again on a gentle cycle just to make sure they will wash and not end up in shreds due to age. Wouldn't want to go to all the work of a quilt only to find that the fabric has pasted its prime.