Some where here among all my boxes of files, I have a file sent to me by another researcher on Leander Lock, also known as James Leander Lock.
If I recall correctly, Leander Lock is thought to be a descendant of one of the 2 or 3 Lincoln County Tennessee Lock families, but not 100% certain about that at this time with out my files in front of me.
There were 2 or 3 unrelated Lock lineages of Lincoln County Tn, but all appear to have come out of Virginia to Tennesse. I do not recall a daughter named Fatha linked to Leander, but I could be wrong. So little is known about this Leander or James Leander Lock.
Leander to my knowledge had no surviving sons. There are if I recall correctly, several BLM land deeds for Leander Lock of Crawford County Ark, which can be found on the BLM web site.
If and when I can, I will try once again to find my file on Leander Lock. I forget who shared that file with me, but she was a Texas researcher who shared that file with me tons of years ago. I can't recall what was in that file at the moment, but if I recall it correctly, it was a pretty extensive file.