人名後的撇號(Apostrophe)

Apostrophe所有的用法，看這裡。

Reynolds' and Reynolds's are both acceptable, as in other possessive nouns ending with s.
eg Bess's Place - http://local.yahoo.com/info-13606295-bess-s-place-newborn Davies's College - http://www.daviesscoll.u-net.com/home.htm

2012-03-17 12:17:25 補充：
More examples here:http://grammar.ccc.commnet.edu/grammar/possessives.htm
with interesting arguments on adding s after ' or not.

2012-03-17 19:22:37 補充：
我已評論,請看
http://hk.knowledge.yahoo.com/question/article?qid=6912031700320

以我所知..." 's " 是 "的"的意思. 而"s' " 是前面個noun是復數...Mr.Reynolds'應該是它的名來的.“Mr.Reynolds' goal“是一舊野,也是佢個名係咁==

If the word ends with an "s", it only needs to add an apostrophe.
In your example, the subject Mr. Reynolds is ending with an "s",
so it is correct to write Mr. Reynolds' goal...