As recorded in newspapers that were published in Dublin [Freeman’s Journal, Dublin Evening Mail] between 1 January 1845 and 31 December 1850 and that are available through the British Newspaper Archive.
Count including ads and family notices
Count excluding ads and family notices
Those charts are a few years old; I must redo them. I suspect that the two terms I’ve used, “famine” and “potato”, don’t capture the full extent of famine reporting: I should perhaps add other terms (eg “distress”).
Irish waterways history 