I need help solving a logic puzzle for math, its title is Family Weddings. Please help if you can.?

I would start by making a 5x5 grid with the brothers names down the side and the sister's names across the top. From the clues mark each box with the possible orders and x-out the impossible combinations. For example, Lester could not be 1 or 2 since he came after Cindy and Mary. And he couldn't be 4 or 5 since he came after Earl and Leroy.