remember Ibzan?

Judges 12:8-10 8 ¶ Now Ibzan of Bethlehem judged Israel after him. 9 He had thirty sons, and thirty daughters whom he gave in marriage outside the family, and he brought in thirty daughters from outside for his sons. And he judged Israel seven years. 10 Then Ibzan died and was buried in Bethlehem.

He had 30 sons and 30 daughters = 60 children (yikes that's a lot of names!). So much for the households that begin every child's name with "J"...