Hi Todd,
Thinking of hammer methods as opposed to hub pullers, Mr. Paul Moller in his little Red Model A Manual describes a hub removal method of:
1. Allowing the difficult wheel/hub to rest on the garage floor with body weight; &,
2. Next, jacking up the opposite side wheel/hub after turning this opposite axle nut backwards & flush with the end of the threaded axle; &,
3. Then, "Wacking" the raised axle end & flush nut with a hammer.
4. Maybe sounds like a Voodoo Spell Method; but who knows ........ just think ...... the hammer force on the opposite end is "centered" ................... but the resistance force on the difficult hub, instead of being "centered", it is "off-centered", i.e., down low near the garage floor.
5. Could be worth a try!