Shemida, ancestor of the Shemidaite family; and Hepher, ancestor of the Hepherite family.
Asriel, ancestor of the Asrielite family; Shechem, ancestor of the Shechemite family;
(Zelophehad, son of Hepher, didn't have any sons, only daughters. Their names were Mahlah, Noah, Hoglah, Milcah, and Tirzah.)
The allocation was for the rest of the tribe of Manasseh, to the families of Abiezer, Helek, Asriel, Shechem, Hepher, and Shemida. These were the male descendants of Manasseh, the son of Joseph, by families.