There appears to have been a good number of people of Flemish origin in Glenshee from early in the 17th century until the industrial revolution took hold. In Scotland this began in late 18th century and early 19th century, and created an incentive for people to move from the rural areas such as Glenshee to cities like Dundee that could offer better employment opportunities.
If the local oral tradition is correct, the Flemish have also left a quite significant footprint on the slopes of the glen. Specifically, there is the remnant of a settlement, at Easter Bleaton in the south of Glenshee, that local people believe to have been occupied by the Flemish, possibly in the 17th and 18th centuries. See:
for more background.