Photos by John McGraw and Graham Mason are not visible on the 7 dwarfs approval list due to the sheer volume that were being submitted at the time.
Dave has/did have some sort of process that does a mass approval.
I assume that these were missed due to a glitch.
Dave, if you now allowed the dwarfs to see any photos submitted by these 2 contributors, would any old missing ones suddenly appear on our to do list?