I am pretty sure that these are Abbie's two companions. Sister Phelps and Sister Hughes. Apparently they are making funny faces.
Sister Hughes being silly (I guess--I can't really tell and Abbie gave little (read: nothing) to explain the pictures) with one of the Elders.
Sister Phelps juggling (this is one of the few pictures with a proper explanation from Sister Slaugh, and her explanation was "Sister Phelps juggling")
According to Abbie's tiny explanation: "us with Brother Shipley"