^^^ Read my post properly i said "from the stories that i have heard where cousins got married to each other, there children were disabled (at least 1 child in most cases)
Got it now?
Yes we see...and it sounds to me like there was perhaps alot of intermarriage in the family line and/or there were recessive genes on the part of both husband and wife that caused disability in their offspring. Like I've said before, if this is a concern then take a visit to a genetic counsellor prior to marriage so that you know exactly what risks you face. Some cousins can marry without worry at all and face no bigger risk than any other couple. Other cousins can face great risk. And genetic counsellors can unravel this for you so that its not a mystery.