He signed a two-year contract extension in November 2008 that will keep him at the club until the summer of 2011.
Young signed his first professional contract in July, keeping him at the club until the summer of 2012.
Two days later, he signed a new deal to keep him at Parkhead until the summer of 2014.
The new contract keeps him in the team until the summer of 2012.
On March 2012 Howard agreed a new contract to keep him at the club until the summer of 2016.
He went on to sign a one-year extension, which kept him at the club until the summer of 2010.
In February 2008 he signed a contract extension to keep him at the club until the summer of 2009.
He signed a two-year contact, which kept him there until the summer of 2008.
Watson subsequently signed a new two-year contract, keeping him at the club until the summer of 2013.
Gorman signed his first professional contract in March 2011, a two-year deal which kept him with the club until the summer of 2013.