Were John and Thomas Lollar brothers?

Thomas Lollar (b. abt 1784) first shows up in White Co, TN in the 1818 Tax list: "Lawler, Thomas, 1wp, 48 acres Calf Killer." John Lollar (b. 11 July 1779) and Thomas both show up in the 1820 White Co, TN census and are listed in each one through the 1960 census. In the 1821 tax list John's listing is "Lollar, John, 1wp, 183 acres Town Creek ." The 1860 census shows John Loller living in District 7 with the nearest post office in New Ark (does the name of this area exist any more?). It shows Thomas Loller living in District 13 with the nearest post office in Clarkstown. 

I'm pretty sure that Town Creek is somewhere on/near Ditty Road off of Burgess Falls Road in Putnam County but I'm not sure of where Calf Killer is though I've heard of it before. (I lived in Cookeville for about 10-12 years.) I was doing some searching on Google maps one day and actually found both a Town Creek Road and an area called Calfkiller. Just type in "Sparta, Tennessee" click to zoom in closer once, and follow highway 84 to the northeast. This is labeled as Calfkiller Hwy and right where it intersects with Mill Creek Road is Calfkiller. Was this the area where Thomas lived? On the map go straight west from Calfkiller and you'll see Ditty at the intersection of Ditty Road and 135 (Burgess Falls Rd). Zoom in once more and you'll see Town Creek road so I'm assuming this is the Town Creek area.  My dad showed me where the John and Isaac Lollar cabin was (the pictures are on this website) and I can't remember now but I'm pretty sure it was right off of Ditty Road somewhere in this area.  The distance from Calf Killer to Ditty is about 15 miles "as the crow flies" so following the roads would make this distance much further. 

So, if John and Thomas were brothers why didn't they live near each other? I'm pretty sure Thomas and his wife Jane are not buried in the Perkins Cemetery but John, Nancy and more Lollars and some Perkinses are. Obviously it's not that they couldn't be brothers, it just doesn't make sense that they didn't live very close to each other. If they were, did something happen between the two of them or did Thomas just live in Calfkiller to be near Jane's family? (I don't know anything about Jane so that's a complete guess.)