
Number of migrants to the United States from Great Britain 1820-1957
Between 1820 and 1957, over 4.5 million people emigrated from Great Britain to the United States. The period with the highest levels of migration came during the 1860s, 70s and 80s, with almost 110 thousand people migrating in 1888 alone. The period with the lowest levels of migration came in the 1930s and early 40s, as the Great Depression caused an economic crisis across the globe, hitting the US and Great Britain particularly hard. Economic recovery in the late 1930s caused the migration rate to increase again, before the Second World War brought the numbers back down in the first half of the 1940s.