Oh, I know a lot about mine. Both grandmothers were in DAR, and one was in Colonial Dames and the other in Daughters of the Confederacy, so both had to have lots of documentation.
I know the most about my paternal-paternal lineage, as my dad got interested in it before he died and I did quite a bit of research on it and got BIA cards for both of us, after a man gave us a report he wrote on my great-grandfather.
Indian Territory was pretty small in 1858 when my g-g-gf first moved from Miss., so there was a lot written about the family and in-laws in the Chronicles of Oklahoma.
Unfortunately, I don’t have the grandmothers’ papers in my possession and whatever I’ve had otherwise was lost two computers ago. Some of it is still online, so I should probably gather it again after I switch to a newer non-virused one (this one is bad and will be gone soon).