RE: Knox Little I called the cemetery and hope this helps because there is no numbering system for the plots.
When you enter the cemetery there are "squares" for "lawn crypts". Knox Little is in the third square on the right. The lady told me there are about 50 graves in the square so it shouldn't be that difficult "if he has a stone".
I do hope that helps. I understand with almost 7000 it must be a hard cemetery to deal with.
I'm not sure if there are others related to him in the same plot but if you do see any others that seem obviously associated with him could you take a shot of their markers as well and I will then investigate the names, create a memorial and submit a photo request.
I'm a member of a group of 9 DNA donors who have over the last few months connected the various branches of our family tree and we are attempting to locate as many headstones and markers to add documentation to our project.