Have to say I am amazed that five of my six brothers and sisters have diabetes Type 1 like me. My older sister got it first when she was 16, I was next at age 20. It was then followed by a progression of another brother at 20, a younger sister at 35, a younger brother at 35, and then a younger sister at 45. Our oldest sister never got it which is qhy she was able to give one of her kidneys to a sister with kidney complications. My dad was one of seven also with five brothers who had diabetes. Nothing on my mom's side. We share a lot of information together and with me in the original DCCT study and now the EDIC study I can also provide them with additional information on the latest research, etc.