It took me a while to figure out what this next record was, since I haven't encountered this sort of record before. What confused me is that this muster roll for the 56th GA Home Guards, dated March 5, 1862, lists John M Connell even though his combined service record records him present with the 3rd infantry at the same date.
Reading the last page of the muster explained it. Georgia had a well-organized militia which overlapped with the regiments raised during the war. My ancestor William Landrum, for example, was an officer in the local militia and had to resign his militia commission before he was able to join a cavalry company. It appears that this is a record made for the Pike county militia which includes the names of all adult males subject to military service in Pike county, including those who had already joined another military unit. Note that the final count equals the sum of all the categories enumerated on the last page. So John M Connell appears here as a male from Pike County, not as a member of the 56th Home Guards.