“Machir took a wife for Huppim and for Shuppim. The name of his sister was Maacah.”
The son of Manasseh was Machir, the clan of the Machirites. He married Maacah who was a sister of Huppim and Shuppim, the Benjaminites mentioned earlier in this chapter as the sons of Ir. This is a very obscure way of saying it since the text seems to read that Machir got a wife for Huppim and Shuppim and that his sister was Maacah. Maacah was the name of a territory also.