Editor's note: This story contains language that some listeners may find offensive.
To siblings Flip and Christine Cuddy, Susan Ahn Cuddy was "Mom."
But she was also a Korean American lieutenant in the U.S. Navy who trained pilots to shoot down enemies during World War II.
It wasn't until historian John Cha's biography of Susan was published in 2002 that her children learned about many of their mother's accomplishments.
"Mom basically was a trained killer," Flip, now 64, said in an interview with Christine, 69, at StoryCorps last year. "She's a much different parent than, you know, someone who owned a bakery."
Susan, who was born in the U.S. and died in 2015 at age 100, was the first U.S. woman gunnery officer and the first Asian American woman in the Navy — an unlikely leader for the time, teaching air combat tactics to white men.
After serving about 5 years in the Navy, Susan worked as a researcher at the National Security Agency, where she gathered intelligence on the government of the then-Soviet Union.
Flip said he's now read his mom's biography at least 10 times, but learning her history over the years was a process. On the surface, he thought of his mom as "a perfect government employee."
As a parent, she took a pragmatic, hands-off approach.
"She was really unusual," Christine said. "She'd been through so much, teaching guys how to shoot. It's like, what do you need to teach a kid? You know? Go out and play."
Flip remembered how she had her own code.
"If somebody was really an idiot, you know, she would say they were 'limited,' " Flip said.
Christine called it "one of her most heavy-duty criticisms."
"She was tough," she said; Flip agrees.
Flip and Christine attribute Susan's patriotism to her father, Ahn Chang-ho, an activist who fought against Japan's occupation of Korea and was killed by the Japanese in 1938.
So when the Japanese attacked Pearl Harbor, Susan felt compelled to enlist.
According to Susan's biographer, John Cha, Susan first tried to sign up for naval officer's school. Although she was qualified, her son Flip said, she was turned away because she was Asian.
Instead, she enlisted as a service member. After excelling at basic training, she was selected as a candidate for officer school, and finally accepted.
"It was a white world and if you wanted to do anything you just had to forge ahead," Flip said.
Soon, Susan was teaching refresher courses for experienced pilots.
Her mother, a 5-foot-1-inch Korean American officer, loved to tell stories about her interactions with her male trainees, Christine said.
Flip recalled one memorable incident during a weapon training course.
"She talks about when you're going to start shooting," he said. "And so this guy goes, 'I'm not shooting until I see the whites of those Japs' eyes.' "
Ignoring the slur, and true to character, Susan took charge.
As Flip tells it, "She said, 'I don't care what you do up there. But when you're down here with me, you do what I tell you to do.' "
For her children, her legacy looms large.
"I mean, how do you describe a person like that?" Flip said. "Who's a leader and successful at everything she does?"
Flip and Christine count themselves lucky to have had such an inspiring mother.
"I also would just say to Mom, what an incredible life you've lived," Christine said.
Audio produced for Weekend Edition by Mia Warren.
StoryCorps is a national nonprofit that gives people the chance to interview friends and loved ones about their lives. These conversations are archived at the American Folklife Center at the Library of Congress, allowing participants to leave a legacy for future generations. Learn more, including how to interview someone in your life, at StoryCorps.org.