Professional copywriter Kim Siever explains how to use an apostrophe after a name ending with Shttpwwwhotpeppercablog20170301use-apostrophe-name-e.

Names ending with s apostrophe. Singular nouns ending in S Rule 1. Form the possessive of a plural place name by adding only an apostrophe the United. Singular names ending in -s Although it is not considered to be good English you may add only the apostrophe words ending on unpronounced -s Charles s dog Charles dog.

With singular nouns ending in double s as in your examples Jeff I think it is more normal to add apostrophe s s because the spelling with apostrophe s then indicates the pronunciation. Just add an apostrophe after the -s. Proper nouns ending in s are made possessive by adding an apostrophe only.

Rabelaiss carnival although only one s sound is pronounced. The reasoning behind this rule is that as we dont say sok-ru-teez-iz theres no reason to write Socratess. The same goes for Classical names ending with s such as Mars helmet or Socrates sandals.

Lands End Lords Cricket Ground Offas Dyke St Jamess Palace. Then immediately use the apostrophe. To show plural possession of a name ending in s ch or z form the plural first.

Here are some more examples. The report clarified Perkins job evaluation. When it comes to grammar rules for apostrophe after s you should be consistent in writing.

SINGULAR PROPER NAMES ENDING IN S. Achilles heel Agnes book Ceres rites Descartes theories Dickens novels Euripides dramas Hercules labors Jesus life Jules seat Kansas schools Moses law Socrates life. Socrates philosophy Ulysses companions Saint Saens music Aristophanes plays.