The plural possessive form of Jones is Joneses', e.g.
We accepted the Joneses' invitation.
The plural possessive form of "Dr. Jones" is "Dr. Joneses'."
Jones has the plural Joneses.So the plural possessive would be Joneses' as in "the Joneses' satellite receiver."
The plural title for two or more men named Jones is Messrs. Jones.There are two accepted forms for possessive singular nouns that end with an s:Add an apostrophe (') after the existing s at the end of the word:Messrs. Jones'Add an apostrophe s ('s) after the existing s at the end of the word:Messrs. Jones'sExamples:The Messrs. Jones' company is called Jones & Jones.The Messrs. Jones's company is called Jones & Jones.Note: The plural form of the proper noun Jones is Joneses, for example:"The Joneses' house is on the corner.""The Joneses's house is on the corner."
The plural title for two or more men named Jones is Messrs. Jones.There are two accepted forms for possessive singular nouns that end with an s:Add an apostrophe (') after the existing s at the end of the word:Messrs. Jones'Add an apostrophe s ('s) after the existing s at the end of the word:Messrs. Jones'sExamples:The Messrs. Jones' company is called Jones & Jones.The Messrs. Jones's company is called Jones & Jones.Note: The plural form of the proper noun Jones is Joneses, for example:"The Joneses' house is on the corner.""The Joneses's house is on the corner."
There are two accepted forms for possessive singular nouns that end with an s:Add an apostrophe (') after the existing s at the end of the word:Jones'Add an apostrophe s ('s) after the existing s at the end of the word: Jones'sExamples:Mr. Jones' assistant will make an appointment for you.Mr. Jones's assistant will make an appointment for you.
Singular possessive: secretary's Plural: secretaries Plural possessive: secretaries'
The plural is relatives. The plural possessive is relatives'.
The plural is lads. The plural possessive is lads'.
The plural form is echoes. The plural possessive is echoes'.
The plural form is suffixes. The plural possessive is suffixes'.
The plural form is Mexicans. The plural possessive is Mexicans'.
The plural form is stepsisters. The plural possessive is stepsisters'.