I am exceedingly well pleased at coming to this land of plenty. ... I would
advise all my friends to quit Ireland--the country most dear to me; as long as
they remain in it they will be in bondage and misery. ... What you labour for
is sweetened by contentment and happiness; there is no failure in the potato
crop, and you can grow Indian corn, and every crop you wish. ... I shudder
when I think that starvation prevails to such an extent in poor Ireland.
--Letter from an Irish immigrant to The Times of London, May 14, 1850
Which quotation from this letter reveals the main reason for the surge in Irish immigration to
the United States in the mid-nineteenth century?
F "I am exceedingly well pleased at coming to this land of plenty."
G "I would advise all my friends to quit Ireland. ..."
H "What you labour for is sweetened by contentment and happiness. ..."
"There is no failure in the potato crop..

What this letter is explaining is that American is the land of 'plenty'. This writer is explaining to the Irish that while their potatoes, family & friends died (potato famine was in 1845-1852) and the crown was after their country he was living like a king.

From 1815 to 1845 500,000 immigrants came to the United States as a part of a migration of more than 1 million immigrants from Ireland