So as I was working away on my tree I realized that  two sets of siblings actually married. What I mean is, relative Marie married Roy, while Roy's sister married one of Marie's brothers. I realized this AFTER I had already entered the information separately, and now have no idea how to connect Roy to the existing family tree I've already plugged in tied to his sister. All it tells me is to enter his parents information and I am wondering if anyone can tell me how to connect him to existing members of the tree.