Kevin sorry to hear about your wife. I hate cancer.
My mom beat breast cancer, I believe she was still in her 30's when she got it, I was a young teen at the time. I never met my grandma on her side, because she died young of breast cancer before I was born. I also lost two aunts on that side from breast cancer, one just turning 40, and other was in her 40's too (that was one of my moms older sisters, and I was pretty young when she passed). Moms side is a big family, also had a few other aunts that were able to beat breast cancer. Needless to say, my mothers side does a lot of walks, ect for breast cancer, and the local paper did an article on them years back. Lost my dad to lung cancer a few years ago as well, and scary watching how quickly it can progress, and how sick the treatments themselves make a person.
My prayers go out to you and your wife during this difficult time.