That figure from GPT-5 seems to be slightly off, according to the Irish Times:
“At least 258 Irish-born soldiers have won the Medal of Honor since its inception. Of those, 148 won them during the civil war – 14 in one day when the Union Navy raided the Confederate port of Mobile, Alabama, in 1864.”
https://web.archive.org/web/20250504103715/https://www.irish...