Siegfried Popper was born in 1848.
Siegfried Popper died in 1933.
Albert Popper was born in 1808.
Julius Popper was born in 1857.
Catherine Popper was born in 1973.
Ami Popper was born in 1969.
David Popper was born in 1843.
Hans Popper was born in 1903.
Karl Popper was born on July 28, 1902.
John Popper was born on March 29, 1967.
Josef Popper-Lynkeus was born in 1838.
David H. Popper was born in 1912.
Frank Popper was born on 1918-04-17.