Gideoni
Gideoni appears in the UPDV only as a patronymic — the father of Abidan, prince of the tribe of Benjamin during the wilderness years. He is never given a speaking part, never tied to an act of his own, never placed in a narrative scene. The five Numbers passages that name him each fix him in the same position: the man whose son represents Benjamin in the census, in the camp, in the dedication offerings at the tabernacle, and on the march.
Father of Benjamin's prince
The first naming sets the pattern. When Yahweh tells Moses to take a census of Israel by tribes and to be helped by one man from each tribe, the Benjamite chosen is identified by his father:
Of Benjamin: Abidan the son of Gideoni. (Num 1:11)
The same identification carries into the camp arrangement on the west side of the tabernacle:
And the tribe of Benjamin: and the prince of the sons of Benjamin will be Abidan the son of Gideoni. (Num 2:22)
Gideoni's name is never separated from his son's. The phrase "Abidan the son of Gideoni" functions as a single tag attached to Benjamin's leadership.
Day nine of the tabernacle dedication
When the tribal princes bring their offerings for the altar, each prince takes one day. The Benjamite day is the ninth, and Abidan's offering is opened and closed by the same patronymic:
On the ninth day Abidan the son of Gideoni, prince of the sons of Benjamin: (Num 7:60)
his oblation was one silver platter, the weight of which was a hundred and thirty [shekels], one silver bowl of seventy shekels, after the shekel of the sanctuary; both of them full of fine flour mingled with oil for a meal-offering; (Num 7:61)
one golden spoon of ten [shekels], full of incense; (Num 7:62)
one young bull, one ram, one he-lamb a year old, for a burnt-offering; (Num 7:63)
one male of the goats for a sin-offering; (Num 7:64)
and for the sacrifice of peace-offerings, two oxen, five rams, five he-goats, five he-lambs a year old: this was the oblation of Abidan the son of Gideoni. (Num 7:65)
Gideoni's son brings the standard prince's oblation — silver platter and bowl, golden spoon of incense, the burnt-offering, sin-offering, and peace-offerings — and the chapter signs the gift with his lineage.
On the march
When Israel finally moves out from Sinai by tribal hosts, Benjamin's host has its own commander, and again it is Gideoni's son:
And over the host of the tribe of the sons of Benjamin was Abidan the son of Gideoni. (Num 10:24)
Gideoni himself does nothing in any of these passages. He is never numbered, never said to offer, never said to march. What the UPDV records about him is that his son did all of these things on Benjamin's behalf, and that the line connecting Benjamin's prince to his father was worth repeating five times.