Calum is a talented boy from Walton who has been with the Liverpool Academy since the age of 10. He broke into the the U17 side midway through the 2002/03 season playing mostly on the left wing, and caught the eye with some promising displays, and scored his first goal at U17 level in an impressive 3-0 win over Derby at the Academy.

The following year he was one of the side's most reliable and consistent performers, catching the eye in a variety of roles. Injuries disrupted his campaign in 2004/05, but he was one of only a handful of John Owens' U18 squad to be kept on for 2005/06. Versatile and two footed, Calum has played right back, left back and in both wide midfield positions in the last couple of seasons.

Having started to grow and fill out considerably, Calum was switched to centre back at the start of the 2005/06 season and took to his new role with ease, producing a series of impressive performances and even captaining the side.

Made his Dunfermline debut on the opening day of the 2006/07 season but started only 9 more matches that season and was often an unused sub. A much more regular starter - 26 times in 2007-08.