THis whole ownership of names thing is ridiculous. If I had a second boy I would have called him William. My cousin(who I am very close to) had a baby boy 5 months before I had my daughter. She called him Will. As it turns out I had a girl, and i am not having any more kids. You can't put "dibbs" on a name just in case. Anywaay I would have jsut called my child William as well. neither of us care about stuff like that.
My son is James. my DH has 50 first cousins, and there are now 4 of us that have called our sons james. I don't care!
Just name your children whatever you wan't.