i wouldnt call it a head gasket. does it ever smoke (except the little bit durning warmup), check the oil level, (if it starts to rise, or gets milky then that is another tell tell sign).
when the motor is cool, crack the radiator cap open slowly. start the jeep and let it idle. if it is pushing lots of air bubbles, then that is another good indicator the head gasket is bad.
And yes there are other things besides the head gasket that could be leaking (freeze plugs). there are several all over the motor as a fail safe in the winter if the water/antifreeze freezes it pops those out to keep the ice from cracking the block/head.
1977 Cherokee ChiefEdelbrock 1406, 33X12.50, front 1.5 inch shackle lift. AMC 360, th400 Quadra-Trac
2002 wrangler, stock 4.0, auto, 33X12.50 maxis buckshot, AEV Highline Body kit, Ford 9 inch rear end, 4" full traction lift.