I saw the location of Thomas Wall, NW1/4 of Section 29, Twp 55 Range 20 .
James Wall is SW 1/4 of Section 20, Twp 54 Range 20. That is still in Chariton co. You are still in the same Range, you go down to Twp 54 and find section 20. Go down to the road going west to Bosworth. From the West edge of the map go east 4 miles, just past the Railway track and you get the NW corner of section 20. James Wall's land is the SW 1/4 of that section. The road turns south along section 20, and there is his house just below the road in Section 20. James lives 4 1/2 miles straight south of Thomas. Now I believe David Wall's patent falls just above Chariton Co. on the south end. It is a reasonable clue that these are closely related.
If you have any information along these lines, It is welcome!
Warm Personal Regards
Paula at firstname.lastname@example.org