Tamás Hajnal was born on 1981-03-15.
János Hajnal was born in 1913.
András Hajnal was born in 1931.
John Hajnal was born in 1924.
Hajnal Black was born on 1977-11-03.
Hajnal Tordai was born on July 21, 1946, in Gyngys, Hungary.
John Tams was born on February 16, 1949.
Theo Tams was born on 1985-07-12.
Simon Tams was born in Princeton, in New Jersey, USA.
János Hajnal died in 2010.
John Hajnal died in 2008.
Irene Tams was born on May 29, 1892, in Trenton, New Jersey, USA.
Peter Hajnal has written: 'Complexity of graph problems'