[lupusreal]

Werner von Braun married his cousin. Granted, that was after he came to America, but she was still in Germany then.

[johncessna]

Yeah, nearly 80 years ago, and he married in Germany. First cousin marriages in the US today will certainly warrant some side eye as Sharlin mentioned.

According to wikipedia 24 states have it banned and then 7 more apply restrictions such as a minimum age or infertility