Peavler/Biggs/Haines Family Research

I am researching Charles M Peavler. He married Rebecca Reese in 1876 in Jefferson County, Illinois. I was fortunate enough to find a ton of data from a cousin in Ohio regarding Charles' ancestors, but nothing as yet on Rebeccas family. Rebecca died in Memphis, Tennessee and is buried in New Madrid, Missouri. I also believe that her son, Cary was living in New Madrid at the time of her death in 1930, but have been unable to locate him. I am also looking for any additional information on thier children:
Alba
Frances
Gabriel
Marie
Nell
E L
John Hill
Carey D
Delbert C
and my Grandfather, William Archibald.
William married Rose Lee Haines in 1912. Her parent were Samuel L Haines and Nancy Isabel Biggs of Kentucky. I have so far been unable to locate either one of their ancestors. Any assistance with any of these illusive members of my family will be greatly appreciated.