Cavenah's Calcasieu Parish 1880's

Looking for information/stories on the Cavenah's. My Cavenah family left Morton, Scott Co., MS in abt 1875 and arrived Louisiana 1st in a town called Rayne, Jefferson Parish abt 1875 then they move to Lake Charles area (Bagdad, Westlake, Moss Bluff). Names are Martha Cavenah nee Evans b.1830, Edward Rush Cavenah b.1854, Robert Cavenah b.1857 (my greatgrandfather), Ada Cavenah b.1860 and James Cavenah b.1864. My family was in the Louisiana timber business.
I haven't found any info on Martha b.1830 or James b.1864. I would appreciate any and all help.
Thank You, Pam Cameron-San Pedro, California
Scotshldy@aol.com