Niels Christensen was born in 1865.
Niels Christian Christensen was born in 1881.
Niels Christensen died in 1952.
Niels Christian Christensen died in 1945.
Conrad Christensen was born in 1882.
The O-ring was invented by Niels Christensen (1865-1952); a Danish-American inventor.
Leif Christensen was born in 1950.
Peter Christensen was born in 1975.
Lars Christensen was born in 1884.
Mac Christensen was born in 1934.
Willam Christensen was born in 1902.
Marit Christensen was born in 1948.
Godfred Christensen was born in 1845.