Salmon was the father of Boaz, Boaz was the father of Obed,
Here is, I. Ruth a wife. Boaz took her, with the usual solemnities, to his house, and she became his wife (Rut 4:13), all the city, no doubt, congratulating the preferment of a virtuous woman, purely for her virtues. We have reason to think that Orpah, who returned from Naomi to her people and her gods, was never half so well preferred as Ruth was.
Commenting on Ruth 4:13-22
And Obed begat Jesse,.... The Bethlehemite, the father of David: and Jesse begat David; the Targum adds, the king of Israel; and so the Syriac and Arabic versions add, the king; from whence it is by some concluded that this book was written by Samuel, not only after the birth of David, but after he had been anointed king by him: here being but four...
And Salmon begat Boaz - The Targum goes on, "And Salmon begat Absan the judge; he is Boaz the Just, on account of whose righteousness the people of the house of Israel were redeemed from the hands of their enemies; and at whose supplication the famine departed from the land of Israel." And Boaz begat Obed - "Who served the Lord in this world with a perfect heart."