Evert Koops was born in 1885.
Roelof Koops was born on 1909-07-19.
Steven Koops was born on 1978-07-24.
Evert Koops died in 1938.
Roelof Koops died on 2008-06-07.
Matthias Koops was born in the United States and became a famous inventer for recycling paper.
Bert Joris was born in 1957.
Bert Davie was born in 1899.
Bert Schenk was born in 1970.
Bert Boeren was born in 1962.
Bert Bushnell was born in 1921.
Bert Lister was born in 1940.