Daniel C. Peterson discusses the use of "secret combination" in 1826 to refer to a political conspiracy.
Daniel C. Peterson, "'Secret Combinations' Revisited," Journal of Book of Mormon Studies 1, no. 1 (1992): 184-88
Abstract The claim that the Gadianton robbers in the Book of Mormon are merely a reflection of nineteenth-century Masons, who were referred to in the late 1820s as “secret combinations,” is false since an 1826 use of the phrase establishes that those words were not used exclusively to describe Masons.