In 1986, a newborn wrapped in a red sweater was found abandoned in the bathroom of a fast-food restaurant in Pennsylvania. Nearly three decades later, she's all grown up and looking for her biological mother -- and tens of thousands of people are trying to help.

Joe Raedle, Getty Images

Twenty-seven-year-old Katheryn Deprill began her quest on March 2 by posting a photo on her Facebook page. The photo shows Deprill holding up a sign that says, "Looking for my birth mother ... Please help me find her by sharing my post."

A week later, Deprill's photo has been shared nearly 27,000 times by Facebook users around the world.

Deprill was just hours hold when she was found in the Allentown restaurant. She says she wants to thank her biological mother for "not throwing me away" and giving her "the gift of life."

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