[CFrance]

Originally Posted by kittygilchrist

“The apostrophe usually is not used if ‘for’ or ‘by’ rather than ‘of’ would be appropriate in the longer form,” such as “a college for teachers.”


Read more: Wood on Words: More confusion over apostrophes - News - Rockford Register Star - Rockford, IL

The author also goes on to say that the Chicago Manual of Style, which was our editing bible at work along with Strunk's, prefers the apostrophes. Thus we always captioned Farmers' Market. Although I have rarely seen a sign for the Ladies' Room.

As long as it's not A Market for Farmer's, I'm okay with either of the above!