Organ Donor's Sister's Special Wedding

On The Early Show Tuesday, Kim told co-anchor Harry Smith that knowing Kris' organs are helping other people has "absolutely" been part of her healing process: "Sometimes I feel like it's been a blessing in disguise. These people have meant so much to us, and know that our son's life continues to go on."

Kirsten Kime told Smith she invited the recipients to her wedding because "they're family." They "absolutely" feel like family to her, and she "definitely, definitely" feels that Kris lives on in them.

"I'm just so grateful that they're around and we can go through experiences with them," Kirsten says. "I couldn't even try to think about how it would be without having them around and being able just to talk to them and know that it really made a difference to them."

Kim says it was "obvious" that the recipients should be asked to attend: "They're part of our family. They have been part of our family now for five years."

Ray Page, who got one of Kris' kidneys, is among those invited, and says it's "awesome, great" to have that chance. "Now we just have to figure out how to get there!" he said to Smith with a chuckle.

In a country where, according to , 90,000 people are on the organ donation list and 18 die every day waiting for organs, Kim says her family "hopes people make the decision to donate organs. It has been a blessing to us."