Quote:
Originally Posted by fidvo
For plural, use the same convention for proper nouns as you would for any other noun. So:
The Dougherteys like to eat fish.
Typically a noun that ends in "s" gets an "es" at the end for the plural, so:
The Joneses like to eat fish.
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That's correct for this example. However, the normal plural rule for words ending in y not preceded by a vowel is to add -ies. Bankruptcy become bankruptcies, etc. That's not the rule for proper nouns; multiple members of the Levy family are Levys (not Levies).
The rule is to usually use -s, but to use -es after a x, s, z, or a sibilant ch or sh.
(Sibilant because "Here come the Churches, but where are the Johann Sebastian Bachs?)
(This is all from Garner's American Usage.)