There are quite a number of Irish family names of the form OʼName. These names include OʼNeill, OʼBrien, OʼLeary, OʼRegan, OʼDell, OʼHara, OʼSullivan, OʼConnor, OʼBannon, OʼBoyle, OʼHanlon, OʼKeefe, OʼMalley and OʼReilly. There is an extensive list of Irish family names at familyeducation.com/baby-names/browse-origin/surname/irish
The apostrophe (that most people use on the internet) breaks a word and so, for example O'Hanlon is broken into O and 'Hanlon. Hashtagging O'Hanlon will result in the hashtag #O and the plain text 'Hanlon.
In Unicode there are actually three apostrophe characters.
- ' U+0027 APOSTROPHE
- ’ U+2019 RIGHT SINGLE QUOTATION MARK
- ʼ U+02BC MODIFIER LETTER APOSTROPHE
The first two apostrophe characters break words and hence hashtags. The last apostrophe though can be used to make unbroken hashtags. I have tested on twitter and facebook and it works just fine. Here is a tweet demonstrating use of the 3 apostrophes in hashtags ➜ twitter.com/andreschappo/status/1490669367528505350 In principle, it should work on those systems which account for Unicode character properties.
