After managing the construction of a hotel in Feldberg, in 1906 he was sent to St. Gallen, where business office buildings emerged under his leadership.
The Black Forest Ski Museum (started 1997) covers the beginning of skiing and the early techniques and equipment used on the nearby Feldberg, including videos, old skis, etc.
He decorated many churches and monasteries for the Hospitaller Order of St. John of God in Brno and Feldberg, working alongside other painters Johann Jablonský and Ignaz Mayer the Elder.
The main terminal moraine of the Pomeranian stage of the Weichselian, the ridge that runs from Eberswalde-Chorin through Feldberg, Mecklenburg Switzerland to the Kühlung ridge near Kühlungsborn, borders the lakeland to the north.
MacDonald is the author of Caught in the Act: The Feldberg Investigation (1994), which gave her account of gaining access to the laboratory of Professor Wilhelm Feldberg at the National Institute for Medical Research laboratories in Mill Hill, London.