Take the tour ×  How would you pronounce the following when
answering a phone for a boss whose last name is Beltz? Some
people are saying Mr. Beltz’s office, pronouncing the extra s,
and someone else thinks you should just say Mr. Beltz office.
Which one is it?  share|improve this question @jwpat7 Yeah, but
this one ends in ‑z, not in ‑s. :) [ducks] –  tchrist Mar 25 at
18:56 add comment  1 Answer  It’s certainly Mr Beltz’s office.
Otherwise it sounds like it belongs to one Mr Belt. See this
answer to Which singular names ending in “s” form possessives
with only a bare apostrophe? for details.  share|improve this
answer Thank you so much. That's what I thought was correct, but
I just couldn't convince my colleague of it! –  bernadette Mar
25 at 18:58 add comment  Your Answer