Heraldica.org- Napoleonic heraldry Macdonald was especially fortunate in the accounts of his military exploits, Mathieu Dumas and Ségur having been on his staff in Switzerland.
M.Dumas, Evénements militaires
Ségur's rare tract, Lecture sur la campagne du Général Macdonald dans les Grisons en 1800 et 1801 (1802), and Eloge (1842).
His memoirs were published in 1892 (Eng. trans., Recollections of Marshal Macdonald), but are brief and wanting in balance.