Here is a list of video lessons featuring songs by Bob Marley on the How To Play Bass website. Aston Barrett (aka Family Man) was the bass player on these tunes:
Three Little Birds by Bob Marley
Could You Be Loved by Bob Marley
Buffalo Soldier by Bob Marley
Exodus by Bob Marley
One Love/People Get Ready by Bob Marley
Jamming by Bob Marley
Get Up Stand Up by Bob Marley