Q.
We are having invitations printed for a party that will be held on our back deck. The problem is that our last name is "Williams" and I'm not sure on how to say that the party will be held on "the Williamses' back deck". What is the correct way to write the plural possessive of "Williams"?
Thanks in advance for your quick reply.
A."Williamses' " is the correct form for the possessive plural.
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