Good luck to you in this task ahead of you. My mom gave me a quilt top that was to be her wedding quilt. It didn't get completed because of the war and there was no fabric, so it stayed in her cedar chest for years. She married in 1945 and the quilt top was pieced in the 30's. She told me to toss it. I couldn't do that. When I laid it out to start the sandwich process I could see I was in trouble. It billowed fiercely. I ended up picking out all the seams and recutting and reasembling the whole thing. I used a lot of starch to keep the fabric from stretching. It was tedious but I hung in there and now I have a quilt that I cherish. It was started by my grandmother with love for her daughter and finished by her granddaughter with love for her mother. The quilt turned out wonderful.