There are only TWO options for how you sign a family name to a greeting card or gift tag. You will either and an "s" or you will and an "es". The letter "H" is especially tricky. Typically, it is followed by an "s", but if it ends in "SH" then you will add and "es".
I know it's shocking, but using an apostrophe to sign your family name is a no no!
