Classification HP is subdivided by cultural groups, or "peoples". This subdivision is presently tentative, as there are as yet few volumes deserving. Class A7 in particular has very few volumes assigned at present. A goodly number of peoples could be identified and added, but at present the others remain in classification HP. It is also possible that this subdivision will be applied to GP if volumes warrant.
*{| class="wikitable" style="text-align: left"|-|A7 = Arabs*|-|C4 = Celts*|-|N3 = Native Americans*|-|V5 = Vikings|}
Other classifications that have been proposed, but not implemented, are:
*{| class="wikitable" style="text-align: left"|-|F7 = Franks*|-|M6 = Moors*|-|N6 = Normans|}
==Second Line==