Mike, you are correct about Deere never publishing a service manual for the model "H".
The only factory information about bolt torques for the model "H" that I have ever found is in Field Service Bulletin 147-S (May 1944) and that was only for head studs (1150 in-lb for the 9/16" diameter studs and 2150 in-lb for the 3/4" oil lead stud in the center).
The first three Instructions and Parts Manuals (owners manuals) for the "H" go into some detail by giving brief information and instructions about grinding valves, re-ringing pistons, etc., but the only information about fastener torque in those manuals is like this:
"When replacing cylinder head, use lead washers under nuts, turn nuts up uniformly and tight and adjust tappets in accordance...."
"When replacing the connecting rod bearing caps, it is important that the nuts be drawn up tight, and cotters in place and properly spread."
I guess they figured the farmers doing this work probably didn't have torque wrenches but would understand the meaning of "tight".