They are part of the larger Luo group. Most members of the group speak Alur , a language closely related to Dojunam Acholi and Adhola. Some Alur speak Lendu or Kebu.
The highland Alur Okoro speak a slightly different dialect from the lowland Alur Jonam , and it might be difficult to for a native highland Alur person to properly understand his lowland kinsman.
The Alur Kingdom is probably the only one that was unaffected by the Ugandan ban on traditional monarchies in Based on the royal spear head bearing tradition, the Ubimu of Alur tribe H. He took over from his late father Kamanda who died in All these sub tribes of the Alur descended directly from King Nyipir lineage. The largest Alur tribe was the Ukuru clan, who counted 10, adult men in , although Alur counted boys as young as 14 years as men.
The Ukuru tribe was founded in when Ngira, a member of the Aryak family migrated with a number of young men including his younger brother Ijira. They took over the territory from the indigenous Bantu inhabitants. The region was quickly alurized. The descendants of the original Bantu men now form the Abira family.
Bantu maternal ancestry is very common in Ukuru. The Ukuru tribes grew in competition with other tribes. Some other clans where completely taken over providing the Ukuru clan with more food resources, women and men to defend their territory. Other clans were dominated from afar.
