Simon of Cyrene named with his sons Alexander and Rufus as eyewitness sourcing (Mark 15:21)

Mark 15:21 identifies the man who carries Jesus's cross as "Simon of Cyrene... the father of Alexander and Rufus." The sons' names are included because Alexander and Rufus were known to Mark's audience and could verify their father's story. Simon may have died or not converted; his living sons are the verifiable sources. Rufus may be the same Rufus greeted in Romans 16:13 ("Rufus, chosen in the Lord, also his mother, who has been a mother to me as well"), providing a potential link between Mark and Paul's Roman church.