How sweet your stepdad is. He is one special person to give you his grandmother's quilts. What was her name? Is it on the quilts? I hope he told you all about her. Those are the stories at are passed on with the quilts for the future generations that are so neat to hear. And the reason some of us make these, to be remembered fondly, with smiles. If he didn't, maybe he could write you all the information and send it to you.
I love the way he set in your machine. You are going to be able to manuver much easier with your quilts now, for sure!