It comes down to a matter of style. Personally, I'd opt for "Adams' Cave".
This is an interesting read on the subject: https://www.dailywritingtips.com/possessive-of-proper-names-ending-in-s/ george.nincehel...@gmail.com On Mon, May 28, 2018 at 7:01 PM, Mixon Bill <bmixon...@austin.rr.com> wrote: > That pesky apostrophe! Strictly speaking, if one wants the possessive form of > the cave name, neither Adam's (puts it in the middle of the poor guy's name) > nor Adams' (Adams is not plural) is correct. It should have been Adams's > Cave. -- Mixon _______________________________________________ Texascavers mailing list | http://texascavers.com Texascavers@texascavers.com | Archives: http://www.mail-archive.com/texascavers@texascavers.com/ http://lists.texascavers.com/listinfo/texascavers