Hal is also used as a feminine given name in English. However, it's more common for males. So, I think that the "Gender" of this name should be updated from "Masculine" to "Masculine & Feminine". Hal is also used as a diminutive of Hala, Halbert, Hallie, Harold, etc.Source: https://en.m.wikipedia.org/wiki/Unisex_name
Source: https://en.m.wikipedia.org/wiki/Unisex_name