As per surgeon's clothing, I have a list of material issued to Surgeon Lewis Howell, 2nd New Jersey Regiment, that points to something other than a military coat:
"An Account [of] Cloth Trimmings etc. Delivered out of the Cloths etc. purchased at Salem for the use of the Jersey Brigade February 1778" included “to Doctor Lewis Howell,” “3 1/2 yds Black Broad Cloth” and “4 3/4 yds Black lining,” likely meant for a coat. There seems to have been some distinction made for the different positions, the field and company officers being given material to make black or blue coats with red or scarlet facings, while the unit paymaster was issued “2 1/2 yds Dark Brown Broad Cloth” and “1 1/2 yds Brown Lining,” for a brown coat.
(See, Part 2 of Rees, "'The Great Neglect in provideing Cloathing': Uniform Colors and Clothing in the New Jersey Brigade During the Monmouth Campaign of 1778," Military Collector & Historian, two parts: vol. XLVI, no. 4. (Winter 1994), 163-170; vol. XLVII, no. 1 (Spring 1995), 12-20
(World Wide Web)http://revwar75.com/library/rees/neglect1.htm, and
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