Atkinson's rhymes with:
aaronson's, ahmanson's, ahmansons, goldenson's, robinson's, robinsons, robinsons', aaronson's, ahmanson's, ahmansons, benson's, goldenson's, hansen's, hanson's, janssens, johnsen's, johnson's, johnsons, levinson's, manson's, parkinson's, robinson's, robinsons, robinsons', swensen's, wilkinson's, wisconsin's