In 1887, John Bartholomew's Gazetteer of the British Isles described Fordoun like this:
Fordoun, par. and ry. sta., Kincardineshire, 3¼ miles NE. of Laurencekirk, 26,869 ac., pop. 1992; P.O., T.O.; John of Fordoun (14th century), author of the Scotochronicon, was a monk at Fordoun.
GB Historical GIS / University of Portsmouth, History of Fordoun, in Aberdeenshire and Kincardineshire | Map and description, A Vision of Britain through Time.
Date accessed: 26th April 2017
Click here for more detailed advice on finding places within A Vision of Britain through Time , and maybe some references to other places called " Fordoun ".