Assuming you mean the scientist: October 25, 1925. He is old!
Thibaud Chapelle was born in 1977.
Howard I. Chapelle was born in 1901.
Dickey Chapelle was born in 1918.
Placide Louis Chapelle was born in 1842.
Mary La Chapelle was born in 1955.
Dorothy Emmet was born in 1904.
Emmet Gowin was born in 1941.
Emmet McDermott was born in 1911.
Emmet Byrne was born in 1896.
Emmet Dalton was born in 1873.
Emmet Sullivan was born in 1895.
A. Maitland Emmet was born in 1908.