The plural possessive form is travelers'.
The plural possessive form of "traveler's" is "travelers'." This indicates ownership by multiple travelers. For example, you might say, "The travelers' luggage was lost."
The plural form for the noun buzz is buzzes; the plural possessive form is buzzes'.
The plural form for the noun tree is trees.The plural possessive form is trees'.
The singular possessive form for the noun Phillip is Phillip's.The plural form for the noun Phillip is Phillips; the plural possessive form is Phillips'.The singular possessive form for the noun Phillips is Phillips's.The plural form for the noun Phillips is Phillipses; the plural possessive form is Phillipses'.
The plural form of the noun writer is writers.The plural possessive form is writers'.The plural form of the noun story is stories.The plural possessive form is stories'.The plural form of the noun farmer is farmers.The plural possessive form is farmers'.
The plural form for the noun university is universities; the plural possessive is universities'.
pLURAL ; orbits Possessive plural ; Orbits' (NB note the position of the apostrophe).
The plural form for the noun manufacturer is manufacturers.The possessive form for the singular noun manufacturer is manufacturer's.The possessive form for the plural noun manufacturers is manufacturers'.
The plural form of the noun echo is echoes.The plural possessive form is echoes'.
The plural form of the noun mouthful is mouthfuls.The plural possessive form is mouthfuls'.
The plural form for the noun body is bodies; the plural possessive form is bodies'.
The plural form for the noun experiment is experiments.The plural possessive form is experiments'.