I'd assume you'd add an apostrophe after the "-x", seeing as though English words that end in "-s", (with the "sssssuh" sound) have an apostrophe added after the "-s" so that the word doesn't sound like "-eses". For example, "The Kyles' family is an awesome family!!". You'd add the apostrophe at the end as opposed to an "s" or another "-es" instead of making "Kyles" sound like "Kyuhl-ziz". Just a guess.
Is it spelled Gautreauxes
The plural of bell is bells. As in "the bells are ringing".
Guillens
Reeves'
The name Ruiz is a proper noun; proper nouns are always capitalized.The plural form is Ruizes.
The plural form of the last name Rush is Rushes
The plural of bell is bells. As in "the bells are ringing".
The plural form is Stintzes.
The plural form of a person's last name is formed by adding an "s" at the end of the last name. For example, "Smith" becomes "Smiths" in the plural form.
The plural form of the last name Parry is Parrys, e.g.We are visiting the Parrys tonight.
Guillens
The plural possessive form of the last name Ellis would be the Ellises'.
The plural form for the proper noun Nellis is Nellises.
To form the plural of a last name ending in s, add es to the end. For example, the plural of the last name Smith would be Smithes.
To make the last name Davis plural, you can add an "es" at the end. The plural form would be "Davises."
Reeves'
The plural form of the name Max is Maxes.The plural possessive form is Maxes'.Example: The two Maxes' last names are Oscar and Mayer.
The name Ruiz is a proper noun; proper nouns are always capitalized.The plural form is Ruizes.