Schieffelin rhymes with:
adrenalin, beguelin, candellin, carolyn, carolyne, eveline, globulin, gwendolyn, hamelin, jacqueline, jessalynn, karolyn, madelin, madeline, margolin, matalin, nicolin, ritalin, rosalyn, sakhalin, sokolin, ugolin
Schieffelin sounds like:
sabalan, sablan, scopolamine, sephlon, shevlin, shovlin, sjoblom, sobelman, spallone, speelman, spellman, spelman, spielman, spielmann, spillane, spillman, spilman, splain, splaine, splawn, spleen, sublime