David Marks looks pissed that he wasn't recognized as one of the founding members (1:03). I guess that's more accurate than long time member, as he was in the band for only a little over a year.
Adding up all the time he played with the BBs (later on) it's
more than a year.

Plus, although he wasn't on the first official recording in 1961 he was kind of there from the beginning - learning to play guitar with Carl in the late 50s and being recognized by Brian early on.
I don't know if he was pissed, though. Maybe just tired or focused. Hell, he smiles so much these days I'll grant him a serious face whenever he feels like it.
