George H.W. Bush shaved his head once to support a Secret Service agent's son with leukemia

An image of the late George H.W. Bush, his face beaming and his dome clean shaven, shot across the Internet this week, some five years after it was taken. On the former president's lap is a boy, stern-faced and also bald, in a shirt of matching blue.

"We wanted to share a memory," the Secret Service said in a tweet Tuesday, recalling that Bush in 2013 "learned that the 2-year-old son of an agent on his detail was diagnosed with leukemia and the detail was going to shave their heads."

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