Posted by Medlengough (12.90.100.75) on December 01, 2001 at 20:50:58:
In my case, I have three, possibly four generations of cluster headache ancestors. Their parentage was German Scottish. However, unfortunately for me there was a predominance of first cousin intermarriage in the 1700's and 1800's. And OK before I get alot of jokes, etc. I might explain that it was due to Quaker religious community practices. These people were isolated in my area in pioneer times.Unfortunately this led to alot of recessive genes being dominant, among which are several rare disorders including one that Abraham Lincoln suffered. Apparently Queen Victoria's descendants having hemophilia was due to the same problem.