Although, I agree with your assessement of the way the guerrillas moved and where they were, Anderson wasn't in on the Marcella raid / hijacking. It was Poole leading the guerrillas. I have read through as many sources as I could get my hands and eyes on and there was no mention of Anderson anywhere. It seems Poole led them at Marcella and then they went to meet up with Blunt. Anderson and his men split up.
I was kinda wondering about the Marcella participants being at Lawrence. German raid by Poole in mid July, Lawrence in mid August, Marcella in mid September. Seems to be a "mid" pattern here.

Richard