Updated, 12:38p.m.

Good morning on this fabulous Friday.

“No Irish need apply.”

That line, printed widely in classified ads from the mid-19th century, was meant to exclude Irish immigrants from work in the United States.

Centuries later, a sign with those same words hangs in O’Neill’s Irish Bar in Hell’s Kitchen, at the behest of the bar’s owner, Ciaran Staunton, himself an Irish immigrant.

“I’ve put that up because I want people to know that when we’re talking about the anti-immigrant movement here, that we ourselves were on the receiving end of ‘no immigrants need apply,’” said Mr. Staunton, who is from County Mayo in Ireland. “And worse than just signs.”

When he’s not tending his bar on Ninth Avenue, Mr. Staunton, a founder of the Irish Lobby for Immigration Reform, traverses the country helping the roughly 50,000 undocumented Irish immigrants in the United States — of which, he estimated, there are 15,000 in New York — forge a path to citizenship.