I only have further info on some of the family.
I have Rebecca Jones in 1850, 1860, and 1880. I posted her grave on findagrave at Mt. Pleasant Baptist Church in Coffee Co., AL. Her daughter, Viola, is buried there. I suspect Matt was buried there but I'm not sure.
Since you only asked if I had found Rebecca in 1870, I suspect you have found her in 1850 and 1860. Her father is in 1870 Geneva Co., AL. Rebecca should have been in 1870 but I've found no record. She has a daughter, Anna, born abt 1871 so, her father should still be alive in 1870.
If you want to e-mail me, I'll be glad to exchange info.