Does anyone remember a book about 2 old ladies who are bed ridden working on the same quilt?

The only book that comes to mind featuring 2 old ladies is a nonfiction book written by 2, over the age of 100, African-American sisters writing about their lifestories. It's called "Having Our Say" and it's both a humorous and serious story. I didn't buy the book, but I read it in one sitting one afternoon at a Borders or Barnes & Noble bookstore (can't remember). Though I'm not sure if they did any quilting in the book, so not sure if it's the book you're talking about. I remember one Delany sister was a dentist in her youth and I think the other one was a schoolteacher. I had heard one had died...not sure if the other one is still alive. I would recommend this book.