Irish Canadians
The first waves of Irish immigrants took place between 1763 and 1880. when ten thousand Irish immigrants arrived on the Island. From 1800 to 1850, "10,000 immigrants from every county in Ireland" had settled in Prince Edward Island and represented 25% of the Island population by 1850.
Scotch-Irish Americans
According to "The Source: A Guidebook of American Genealogy", by Kory L. Meyerink and Loretto Dennis Szucs, the following were the countries of origin for new arrivals coming to the United States before 1790. The regions marked * were part of, or ruled by, the Kingdom of Great Britain. (The United Kingdom of Great Britain and Ireland after 1801) The ancestry of the 3,929,326 million population in 1790 has been estimated by various sources by sampling last names in the 1790 census and assigning them a country of origin. According to the Harvard Encyclopedia of American Ethnic Groups (Thernstrom, S 1980, 'Irish,' p. 528), there were 400,000 Americans of Irish birth or ancestry in 1790; half of these were descended from Ulster, and half were descended from other provinces in Ireland. The French were mostly Huguenots and French Canadians. although only 17% of all Americans had any religious affiliation.The Indian population inside territorial U.S. 1790 boundaries was less than 100,000.