I see the sign daily. There are several legends for how it was named. Everything seems to have many legends. Anyway, generally people here believe this story. “A few months after her family acquired its new ranch, Daeida visited her hometown of Hicksville. Daeida heard the name Hollywood from another traveler, who owned an estate by that name in Illinois.” https://en.m.wikipedia.org/wiki/Daeida_Wilcox_Beveridge#:~:text=Daeida%20heard%20the%20name%20Hollywood,Los%20Angeles%20County%20Recorder's%20office.

No , never heard that ! Reading now. I heard that Hollywood ironically started off as a gated Christian community, but nothing about Ireland.