This is the heartwarming story about George H. W. Bush’s kindness that few people talk about

The Secret Service shared a photo of the late former President George H. W. Bush on Tuesday, recalling a time when the president exhibited his kindness and compassion through an agent's child, who had been diagnosed with leukemia.

Bush, who passed away on Friday at the age of 94, lost a daughter to leukemia in 1953 when she was just 3 years old.

What's in the photo?

The Secret Service's official Twitter account shared a photo of the late president with the son of a Secret Service agent who lost his hair after leukemia treatments.

In 2013, an agent's bald 2-year-old son, Patrick, was pictured on Bush's lap. Bush — whose nickname from the Secret Service was "Timberwolf" — had shaved his own head in solidarity with the young leukemia patient.

The Secret Service account shared the moment, captioning it, "Everyone's #TuesdayThoughts are on President Bush & we wanted to share a memory. In '13, Timberwolf learned that the 2-year-old son of an agent on his detail was diagnosed with leukemia & the detail was going to shave their heads. You can see what happened, in classic 41 manner."

In 2016, Bush's own Twitter account shared an update of the young man at 6 years old.

Bush wrote, "Incredibly #thankful that my friend Patrick, the courageous young man (with hair!) to my left, is feeling and doing much better these days."

Bush's state funeral will take place on Wednesday at the National Cathedral in Washington, D.C. The former president will later be transported to his presidential library in College Station, Texas, where he will be laid to rest alongside his wife of 73 years, Barbara Bush, who died in April.