Most influential album? Hmmmmmmmmmm
I remember the days when albums were much less important than singles.
New releases were on 45's or even 78's first heard on air or on the jukebox. If you liked it you rushed out to buy a copy. Albums came along as a collection of the performers old releases.
That being said, The Clancy Brothers & Tommy Makim's "Rising Of the Moon" had the most influence on me personally .