(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.
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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.