2 examples of jackboots in sentences

Here we met with such unpassable hills, vast moors, rocks, and stonyways, as lamed all our horses and tired our men; and some times I was ready to think we should never be able to get over them, till our horses failing, and jackboots being but indifferent things to travel in, we might be starved before we should find any road, or towns; for guide we had none, but a boy who knew but little, and would cry when we asked him any questions.

Now and then a clumsy caleche is driven past by a negro postillion, in blue livery and jackboots, riding a second horse yoked outside the shafts, and omnibuses drawn by four or six mules, are not infrequently met with, and seem to be much patronised.

2 examples of  jackboots  in sentences