Triplets: Growing up in a set

The 3-year-old McLain triplets, from left to right, Erin, Melissa, and Caitlyn, pose for a photo during the Triplets Connection Convention picnic at Valley Forge National Historical Park, on Saturday, July 30, 2011, in Valley Forge, Pa. Eye on Parenting
Families of triplets, quads gather in Philly area

Credit: AP Photo/ Joseph Kaczmarek