In 1 Chronicles 2.10 Amminadab is listed as the son of Ram, and in 1 Chronicles 2.11 Nahshon and Salmon are mentioned.
Quoted with permission from Newman, Barclay M. and Stine, Philip C. A Handbook on the Gospel of Matthew. (UBS Handbook Series). New York: UBS, 1988. For this and other handbooks for translators see here .