Mary wandered through Arlington National Cemetery. She was looking for her grandfather's tombstone. In a sea of perfectly aligned crosses, Grandpa's tombstone stood out.

That's because it was different: a crescent moon shape. Grandpa had earned the distinction of saving three of his comrades during World War II.

His heroics became known as the Moonlight Run. Wandering through the forest behind enemy lines, Grandpa had rescued three wounded soldiers, leading them out of the forest with only the light of a crescent moon to guide him.

Grandpa never had a movie like "Hacksaw Ridge" made about him, but Mary knew that he was a special kind of hero - not only for his exploits on the battlefield, but also as a kind and loving grandfather.

He had set the tone for his successful family, while allowing three other families to begin their stories.