Alphabetizing

Q. We are alphabetizing a list of acronyms letter by letter, and some contain ampersands. While CMOS advises the skipping of punctuation marks and spaces, I’m left wondering what to do about this symbol. Which comes first, HMD or H&MN?

Q. We are alphabetizing a list of Broadway musical titles and are wondering how we should deal with titles in French that begin with articles (La Cage aux Folles and Les Misérables). We are leaning toward alphabetizing under the article as you suggest for place names.

Q. I work in a bookstore. Usually keeping my section in perfect order is a lost cause, but when trying to alphabetize I sometimes have questions about special situations. First of all, would you put O’Shaughnessy before Omartian because it has an apostrophe, or would you pretend the apostrophe isn’t there for purposes of alphabetization? (I have been assuming that an apostrophe would count as a letter just before A in the alphabet.) I would also appreciate it if you could enlighten me as to whether there is an order for punctuation—if apostrophes come before hyphens and whatnot. In alphabetizing names that have abbreviations in them, should I treat author St. George as “Saint George” or “S-T-period-space-George”? It makes a big difference as to whether to put him in the STs or the SAs. Thank you for your attention.