[2] He had a successful trial with Jackie Mudie's Port Vale over the summer of 1965, having joined in July he signed as a professional by October.
[1] He made his debut on 12 January 1966 in a 2–0 defeat by Bradford City at Valley Parade, in what was the youngest ever front-line in the history of the Football League – consisting of Donald (17), Roddy Georgeson (17), Mick Cullerton (17), Paul Bannister (18), and Paul Ogden (19).
[1] He moved to Northern Ireland to sign with Derry City, who were managed by his former Vale teammate Jimmy Hill.
[3] He spent three years with Derry, before turning part-time at Ballymena United whilst working a job as a manager at a factory.
[6] In 2018, Donald claimed a gold medal in the 400 metres event in his age category at the Scottish Masters Athletics Championships at Grangemouth Stadium.