Found the works you indicated on-line; the links to them are below (with a few edits on the list):

From the University of Lasaunne with handwritten notes on the family of Rieu (perhaps by Professeur Rivier who donated the work to the library)

Rieu Jean-Louis, edited by Charles Rieu
Mémoires de Jean-Louis Rieu, ancien premier syndic de Genève
Genèva & Bale [Basel]: H. Georg, 1870.

http://books.google.ch/books?id=IPA6AAAAcAAJ

Van Dedem de Gelder A. B. G.,
Un Général hollandais sous le premier empire. Mémoires du général Bon de Dedem de Gelder 1774-1825.
Paris: L. Plon, Nourrit et Cie., 1900.

Direct
http://books.google.ch/books?id=_DxFAQAAIAAJ

Readable on-line

http://archive.org/details/ungnralhollanda00goog

Vionnet de Maringoné, Louis Joseph
Campagnes de Russie & de Saxe (1812-1813): Souvenirs d'un ex-commandant des grenadiers de la vieille-garde
Paris: E. Dubois, 1899.

Direct
http://books.google.ch/books?id=qk1EAAAAIAAJ

Read on-line
http://archive.org/details/campagnesderuss00marigoog