grammar

my formal schooling in the Seventies taught me Jones made possessive . . needed and es bc u say it . . there4 u must write it . . not true . . only sort of true . . many ppl find Jones does not need an es . . and Mr. Jones’ golf clubs sounds normal . . . and my internet search says it’s a disputed rule . . 4 me liberating . . in a recent post the phone of Morris b came Morris’ phone . . amen alleluia assalamualaikum mazel tov