Ulam
Two men named Ulam appear in the Chronicler's genealogies: a Manassite descendant in the line of Machir, and a Benjamite firstborn whose sons grew into a fighting clan of archers.
Ulam Son of Sheresh
In the Manassite genealogy through Machir, Ulam appears as a grandson of Maacah and Machir by way of their son Sheresh. "And Maacah the wife of Machir bore a son, and she named him Peresh; and the name of his brother was Sheresh; and his sons were Ulam and Rakem. And the sons of Ulam: Bedan. These were the sons of Gilead the son of Machir, the son of Manasseh." (1Ch 7:16-17). The line is summed up under Gilead and Manasseh, so Ulam is set in the eastern, trans-Jordan branch of the tribe.
Ulam Son of Eshek
A second Ulam appears in the Benjamite genealogy as the firstborn of Eshek. "And the sons of Eshek his brother: Ulam his firstborn, Jeush the second, and Eliphelet the third." (1Ch 8:39). His descendants are noted for both military prowess and unusual fertility: "And the sons of Ulam were mighty men of valor, archers, and had many sons, and sons' sons, a hundred and fifty. All these were of the sons of Benjamin." (1Ch 8:40). The hundred and fifty descendants — explicitly counted in the chronicler's roll — make this Ulam a head of a sizeable Benjamite house, identified by the bow.