Well, "As I Roved Out" is a very generic phrase so it's no surprise that there are a lot of songs using it. But aside from "The Trooper and the Maid" and "Seventeen Come Sunday" which share or swap a lot (even the Traditional Ballad Index lists Seamus Ennis' "As i Roved Out" as an exemplary recording for both songs!), the other five songs are quite different in topic and easy to distinguish.