Grathwohl rhymes with:
heatwole, agricole, amcole, amphibole, anatole, bankroll, bedsole, blowhole, buttonhole, casserole, charcoal, coloroll, cubbyhole, dipole, ebersole, eversole, fishbowl, flagpole, foxhole, glycerol, harpole, heatwole, interpol, keyhole, levamisole, lodgepole, loophole, manhole, metropol, monopole, mousehole, oriole, payroll, pigeonhole, pinhole, posthole, pothole, redpoll, seminole, sinkhole, stackpole, superbowl, tadpole, technitrol, vanderpoel, virazole, walpole, wampole
Grathwohl sounds like:
gardella, gartley, girdle, girdley, gordillo, gradel, gradual, gradually, greatly, gredel, greedily, gretal, gretel, grethel, gridley, guardedly, guardiola