Hi-low is a straight last, natural, rough out half boot.
NHB, left/right last, natural, rough out half boot.
DHB, same as the last one except it is 5/8″deeper so you can use orthotics or gel soles.
BHB is left/right last, black, rough out half boot.

Hi-Low Trekkers, straight last, natural rough-out leather
Hi-Low Trekkers, straight last, natural rough-out leather

Hi-Lows are the straight last in the Trekker series.  All leather natural rough-out, lace up half boot. sizes 6 to 15

If you look at the American Rifleman article on muskets of the Revolution, you will see that Troiani portraysGeneral Warren standing atop the parapet with sword in hand as he waits to see “the whites of their eyes.”  He is wearing black Hi-Lows / Black Half Boots.

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Deep Trekker-1747 to 1812 Boot
Deep Trekker-1747 to 1812 Boot
Deep Trekker-1747 to 1812 Boot

Colonial Deep Trekkers have a deeper 5/8″ bed so that you can use orthotics.  It is the style as the other trekkers but either orthotics or gel soles will give you that needed support without making your boots too tight.

Full and half sizes in D & EE widths 7 to 15 same as modern sizing.  Order your normal size.  Do not size up.

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Hi-low is a straight last, natural, rough out half boot. NHB, left/right last, natural, rough out half boot. DHB, same as the last one except it is 5/8"deeper so you can use orthotics or gel soles. BHB is left/right last, black, rough out half boot.