Hi Forostar and all.
Yes, it is Tony Parsons on the guitar in the picture, but that was incorrectly labeled by the producers of Early Days DVD as he was kicked out on November (24).
The photo was perhaps from THE HEAVY METAL BONFIRE NIGHT EXPLOSION event on November 5th, 1979 - Parsons' last gig in the Music Machine.
The HEAVY METAL XMAS gig was Doug Sampson's last gig, back with the 4-lineup.
About Dennis Stratton, he joined Maiden at the end of year 1979 and didn't play on the Burning Ambition studio session - which i would call Running Free sessions, because they recorded 2 songs for the single. About the time Stratton and Burr came into the band it was decided they would record as quick as possible another version of "Running Free". Thus it ended on the single with the "Burning Ambition" taken from that session.
First Stratton and Clive burr gig was in Aberdeen University, Scotland, February 1st 1980.