World War II veteran Bill Pool is the only still-living son of a Civil War soldier.

What?  How?

Bill Pool, born in 1925, enlisted in the Army in 1941 and fought in WWII in Europe. His father, Charles Parker Pool, born in 1844, was 80 years old when Bill was born.

“Grandma was 27, and grandpa was 71 when they married,” Bill Pool’s daughter, Carolyn, told KY3.

The WWII veteran will reportedly turn 100 in January and currently resides in Bolivar, Missouri.

Pool’s daughter told KY3 that, when she was growing up, she would often tell her teachers, “My grandfather served in the Civil War.”

Charles Pool fought for the Union with the Sixth West Virginia Volunteers in the American Civil War.

Interestingly, Bill Pool is considered a third-generation soldier because his paternal grandfather joined the Union at the same time.

The book also notes that Pool’s father was very generous with his Union pension in the years that followed the Civil War — he helped a young Arkansas mother after her husband left her during the Great Depression.

Charles Pool died in January 1933, at the age of 88.

Notably, Bill’s mother, Clara, was the last Civil War widow to draw Union benefits in Missouri. She was born in 1888 and died in 1990 at the age of 102.