Amminadab was the father of Nahshon, Nahshon was the father of Salmon,

Matthew 1:4
Ram was the father of Amminadab, Amminadab the father of Nahshon, and Nahshon the father of Salmon.

Exodus 6:23
And Aaron married Elisheba, the daughter of Amminadab and sister of Nahshon, and she bore him Nadab and Abihu, Eleazar and Ithamar.

Numbers 1:7
from Judah, Nahshon son of Amminadab;

Numbers 2:3
On the east side, toward the sunrise, the divisions of Judah are to camp under their standard: The leader of the descendants of Judah is Nahshon son of Amminadab,

Ruth 4:19
Hezron was the father of Ram, Ram was the father of Amminadab,

Ruth 4:21
Salmon was the father of Boaz, Boaz was the father of Obed,

And Amminadab begat Nahshon, and Nahshon begat Salmon,