On the Karrer/Hallwyl Regiment, I have published some results of my research on this unit. They are:
"The Troops of French Louisiana 1699-1769" Military Collector & Historian, XXV, No. 2, Summer 1973, pp. 58-65. A part discusses Swiss troops in the Louisiana garrison and there is a colour plate of a private of Karrer by E. Lelièpvre, part of a special colour folder of four plates illustrating this article.
"The Karrer1Hallwyl Swiss regiment 1719-1763" Campaigns, No. 21, March-April 1979, pp. 32-37. (several color plates by E. Lelièpvre)
The regiment is also mentionned in my books:
LOUIS XV's ARMY (5) COLONIAL AND NAVAL TROOPS (Osprey MAA 313, London, 1998). This is a review of all French colonial and marine troops and their uniforms, etc, between 1715 and 1774.
CANADIAN MILITARY HERITAGE, VOL. 1, 1000-1754 (Montreal, 1993). A general military history of Canada, richly illustrated in colour. Now out of print but may be found on the web site of its sponsor, the Canadian Department of National Defence at: http://www.dnd.ca/hr/dhh/publications
Most of the data came from the French colonial archives and contemporary books of the 18th century. In closing, I must caution you on using the plates and shematic figures in Moulliard, Lienhart & Humbert, and other late 19th and early 20th century compilations. They are often full of ommissions and mistakes. The latest compilation, which has, I hope, less errors as compiled largely from French Army annual registers, is my own LOUIS XV's ARMY which deals with all units in the metropolitan army, the militias, police forces, semi-feudal princely forces (such as papal troops in Avignon) and royal and French East India Company colonial troops. It was a lot of work!
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