mother2- As Liz said, this is usually something asked right away when you see a doctor about your migraines. Now that you know your dad suffers from the same type of headaches you do, you may want to share this information with your dr.
The majority of women on both sides of my extended family have (at one point in their lives, if not currently) suffered from migraines. None to the extent I did, but migraines nonetheless. My dad suffers from tension headaches that make him sensitive to light, noise, and he has to lay in a dark, quiet room to get relief. I keep suggesting these might be migraines, but he insists they are just headaches *shrug*.
None of the members of my direct family suffer from migraines, but my maternal grandfather and paternal grandmother both had migraines. In my case, the migraines skipped a generation fortunuately for my parents. They just have to deal with mine. Both grandparents have long sense passed, way before much was even known about migraines. I don't even know how they dealt with the pain. Sorry I'm not much help here.