[2] In his first season with The Diamonds, Buchanan was part of the team that finished bottom of the final Scottish First Division.
[6] Buchanan departed the Sons after 77 appearances, scoring three goals and then signed for Scottish Championship rivals St Mirren on a one-year deal in May 2017.
[7] Prior to turning professional with St Mirren, as a part-time player, Buchanan worked as an insurance salesman.
[4] After limited chances to play for the Buddies, Buchanan departed the club by mutual consent on 11 January 2018 and signed for Livingston.
[8] Both of the clubs Buchanan represented in the 2017-18 season, the Buddies and the Lions, were promoted from the Scottish Championship.