(ABC News) John Maixner spent years walking into a Walmart in Dickinson, N.D., and waving to the friendly female employee who, he now can see, bore a slight resemblance to him.
It wasn't until Maixner, 57, who was given up for adoption as a baby, began looking for his birth family to obtain medical information that he discovered the Walmart employee, Buddine Bullinger, was his sister.
"My mouth just fell open," Maixner told GoodMorningAmerica.com today.
Since his search began last year, Maixner has discovered he has a brother and three sisters, and he's been reunited with all of them.