You can see in the above photo that we had spare glass on hand, except that it's not wide enough for this window! We made a run to True Value, Home Depot and Lowe's. NONE of them carried glass wide enough (short just 1.5"!!). So we finished cleaning/wire-wheeling the frame and taped on some plastic sheeting - sorry Maude, lookin' trashy again! - to seal her back up until we can get the new pane put in.
Yesterday we found a place that has wider glass and they were able to cut it to size for us, for about 4x the cost of the panes we got for the smaller windows ;) Oh well! It seems to be the way things go with Maude LOL!