Newhall's rhymes with:
overhauls, whitehall's, basketball's, basketballs, butterballs, catcalls, coveralls, eyeballs, fastballs, fireballs, football's, footballs, handballs, marshalls, meatballs, mothballs, neanderthals, oddballs, overalls, overhauls, pitfalls, pratfalls, protocols, rainfalls, recalls, shortfalls, snowball's, snowballs, softballs, spaceballs, spitball's, thiokol's, trackballs, warhol's, waterfalls, whitehall's, windfalls
Newhall's sounds like:
nails, nalco, nalls, nameless, neal's, nealis, neels, nehls, neil's, neils, nelles, nellis, nels, newell's, niels, niles, nilges, nilles, nils, noel's, nolasco, noles, nolls, nowels, nylex