"although it be customary to part the hair in the centre, the division should be made on one side if it grow low on the forehead and beautifully high on the temples" From Godey's Magazine 1861

 

 

I love this picture and I find her hair most interesting.  Here is a link to a page were more research was done on parts- http://www.jessicadeandesign.blogspot.com/2013/06/curls-and-parts.html

 

Links On Vivandieres

Here are some links I found about Vivandieres-
http://theebonswan.blogspot.com/search/label/vivandiere
http://speakingofladies.com/articles/vivandier.shtml
http://www.cantinieres.com/
I don't know how accrete this info is but they all seem to sat pretty much the same thing.