I would judge as if you were all playing face-to-face in real time, and a bunch of your players had an emergency and had to leave all of a sudden. Do the two who remain get a chronicle sheet for completing it? I would say they would. I'll ask on the Paizo boards and get a confirmation (hopefully).
"No, read through the threads. The very first page has me asking Mr. Melee, which Hugh coulda seen too."
I'm sorry I missed that, I started off by asking what everyone's faction missions were and went with the ones that were sent in, and I just forgot about yours since it never came up again. I just skipped through the first few pages of OOC since that was MrMelee's stuff.
I check the current game threads, but as you can see from the lateness of this post I don't usually check much else. Busy with school stuff all the time.
In the future I will totally use a Mission Progress post like Odin.