Sheldon Galbraith was born on 1922-05-24.
Maurice Galbraith Cullen was born in 1866.
Sheldon Souray was born on July 13, 1976.
Bob Sheldon was born on 1950-11-27.
In the 2010 episode, "The Einstein Approximation," Leonard is asked how long Sheldon has been stuck. Leonard replies, "Emotionally, thirty years." This would place his birth year about 1980. In "The Peanut Reaction," Penny refers to Sheldon as a "typical Taurus" -- placing his birth time at between April 20 and May 20.
Yes, he has a little sister, Bernadette Galbraith.
Paul Galbraith was born in 1964.
Catherine Galbraith was born in 1913.
Alexander Galbraith was born in 1883.
Nancy Galbraith was born in 1951.
Jean Galbraith was born in 1906.
Percy Galbraith was born in 1898.
Barry Galbraith was born in 1919.
Colin Galbraith was born on 1973-##-09.
Jade Galbraith was born on March 2, 1982.
Adam Galbraith was born on June 16, 1977.
Tam Galbraith was born on 1917-03-10.
Keevin Galbraith was born on 1979-04-30.