“After that, he was seen of James; then of all the apostles.”
King James Version (KJV)
15:7 Then by all the apostles - The twelve were mentioned #1Cor 15:5|. This title here, therefore, seems to include the seventy; if not all those, likewise, whom God afterwards sent to plant the gospel in heathen nations.
1Co 15:7 After that, he was seen of James. James, the Lord's brother, not James the apostle. This James was prominent, when Paul wrote, as the chief bishop at Jerusalem (Ac 15:13 21:18) and the author of the epistle of James. James, the apostle, had been killed by Herod (Ac 12:2). Then by all the apostles. See Lu 24:50.