Robert Walker Irwin died in 1925.
Robert Walker Irwin was born in 1844.
Robert Alexander Walker died in 1989.
Robert Walker Macbeth died in 1910.
Robert Walker - MP - died in 1673.
Robert Sandilands Frowd Walker died in 1917.
Robert J. Walker died on 1869-11-11.
Robert Jarvis Cochran Walker died in 1903.
Robert Irwin was born on September 12, 1928 to Robert Irwin and Goldie Anderberg Irwin. Source: http://en.wikipedia.org/wiki/Robert_Irwin_(artist)
Robert George Irwin was born in 1908.
Bindi Irwin's brother's name is Bob Irwin.
Robert Clarence Irwin goes by Bob.
Yes, he has one child: Bindi Sue Irwin