I just entered the cause of death and Category: Lung cancer deaths to the Article on Illinois Representative Charles Arthur Hayes. His name now appears in that Category, but not in the Category: Cancer deaths. Shouldn't he appear in this Category also since cancer is what he died from? It seems the only way to accomplish this is to include both Categories in his Article. However, when I have done this in the past, in other similar situations, I have gotten a whole lot of grief. What gives?
The entire category will be in Cancer deaths as a sub category. Including members of sub categories on the main category page would make the whole system unworkable. We keep the size of categories to a manageable size by taking members out and putting them in a sub category.