While Dale and Arlen held the wall, I attached the bottom plate to the sill.
I ran out of daylight pretty quickly after Dale and Arlen left. I managed to put up a brace on either end of this new wall section, but that's it. Still to do: some fastening on the top plate, installation of the entryway header, and the rest of the sheathing. As I was packing things away for the night, my demon cat jumped up in the windowsill and proceeded to claw the side! (If he even attempts this on any finished wall, I'll be posting photos of felon kitty. I told him this. See how concerned he is?)
South Wall 1
South Wall 2
South Wall 3
South Wall 5