I finally figured out how I would make the hand for the Mannequin. It took me a while to decide how to approach it. I considered using a cylinder with more segments on the end caps but I was still going to have to deal with the part that would need to be made a bit flat but concaved and the cylinder would have the sharp edge to to deal with. So I used a sphere.
Of course the one end had to be flattened, if not made a little 
concave to work with the wrist sphere. That was fairly easy since I’ve been doing that part pretty regularly. I selected the center point on that end and used the soft select tool to impact the points in a graduated fashion. Though, now, as I look at my larger Mannikin for reference, I realize I would have been better of to deform the sphere first so that it was more oblong. I’m not starting over so I’ll just stick with what I have and make adjustments as needed.
To get that nice angle-ish shape, I had to do quite a bit of minute adjusting. MOstly of points. I tried selecting a larger area and transforming it but that didn’t get it right. I even tried that with the soft select tool. I was able to make some adjustment that way. Just not enough and not really smooth enough. So a lot of fiddly bits again. I did find that it helped to isolate that particular component and to view it in wire frame. The wire frame view let me see the points and edges better so I could get it all more smoothly aligned.
Here you can see the part of the hand sphere that I adjusted. It’s not totally flat like my reference Mannikin. However, I will be animating them so it may be
better this way. I will also be refining everything soon so I may smooth that side out and even flatten it more.
I added a reference column of heads so I could get the height right. I had noticed that I might be a little off. So I copied the head shape over to the side and then stacked eight of them. When I did this I noticed that I was right and I was off. I knew that the pelvis component was a too short so I moved the all the components from the pelvis up, including the pelvis, so that the top of the head was 
even with the top of the stack. Of course that left a gap between the pelvis and the hip components. I’m going to have to fix that.
Next up I start refining the shapes. Oh, and I should probably work on getting the height and distances cleaned up while I refine everything. I think the Head will be fine but I know as I move into the chest and waist and so forth that I will need to make some changes.