Part 2 of the BioLogos series on the historical Adam features Jack Collins, who like Walton argues for a historical Adam, though one 'at the headwaters of humanity.' Collins argues:
I argue that the best way to account for the biblical presentation of human life is to understand that Adam and Eve were both real persons at the headwaters of humankind. By “biblical presentation” I refer not only to the story in Genesis and the biblical passages that refer to it, but also to the larger biblical story line, which deals with God’s good creation invaded by sin, for which God has a redemptive plan; of Israel’s calling to be a light to the nations; and of the church’s prospect of successfully bringing God’s light to the whole world. That story concerns the unique role and dignity of the human race, which is a matter of daily experience for everyone: All people yearn for God and need him, must depend on him to deal with their sinfulness, and crave a wholesome community for their lives to flourish.
I argue that the nature of the biblical material should keep us from being too literalistic in our reading of Adam and Eve, leaving room for an Earth that is not young, but that the biblical material along with good critical thinking provides certain freedoms and limitations for connecting the Bible’s creation account to a scientific and historical account of human origins (p. 143).