Hi Don,
Frames at the stern:
For frame 31 and 32, you need to look at plate 2, find part g1. The drawing should answer your question(s). From there, you can see how the frames are are fitted to the sternpost knee. Note the elevation, which explains why sometime the stern frames are called rising frames.
Also, in the text portion of the monograph, and in particular, the description of individual plates, look for the explanation under plate 2, part g1: there could be useful written info. Also look for the description on plate 3 and 4, the frame templates and more: there should be written info as to how the frames are fitted to part g1.
If you still have to make frame 30, same idea, except that this frame is sitting on part e1: the aft portion of the rising wood, which is installed on top of the last keel portion. The same is also true for frame 29 and 28: just not as high as the frames further back.
As for the forward frame (#1): similar idea: except that you have to look for part f2 (again on plate 2), which should be labeled as the lower part of the apron.
Hope this helps.
Regards.
G