How to make your last name plural.

Last letter(s) of last name What should you add to make it plural? Does it need an apostrophe?
a, b, c, d, e, f, g, h (see exceptions below), i, j, k, l, m, n, o, p, q, r, t, u, v, w, y -s NO
s, x, z, ch, sh -es



From an article by Kate Brannen Smith (see original article HERE)

Pluralization FAQs

Q: What if my last name ends in a "y"? 

A: Add an "s." Do not add "ies" or an apostrophe. Merry Christmas from the Murphys. 

Q: What if my last name already ends in an "s"? 

A: Add "es." Do not add an apostrophe. Season's greetings from the Simmonses.

Q: What if the end of my last name normally functions as an irregular noun? 

A: It is not irregular when it is part of a last name. Happy holidays from the Hoffmans. Warm wishes from the Wolfs. 

Q: What would adding an apostrophe do? 
A: It would hurt Tiny Tim make your last name possessive.

Q: Is there ever a reason to add an apostrophe? 

A: Only if you want to make your last name possessive.

Q: Why do people add apostrophes? 

A: I have no idea.

If your goal is to make your last name possessive, then, by all means, use an apostrophe. If your goal is simply pluralization, however, forgo the apostrophe.