Reference 1: Population.
Reference 2: New York, Pennsylvania, Illinois, Ohio, California, Texas, Michigan, Massachusetts, New Jersey, Missouri, North Carolina, Indiana, Wisconsin, Georgia, Tennessee, Kentucky, Alabama, Minnesota, Virginia, Iowa, Louisiana, Oklahoma, Mississippi, West Virginia, Arkansas, South Carolina, Florida, Maryland, Kansas, Washington, Connecticut, Nebraska, Colorado, Oregon, Maine, Rhode Island, District of Columbia, South Dakota, North Dakota, Montana, Utah, New Mexico, Idaho, Arizona, New Hampshire, Vermont, Delaware, Wyoming, Nevada and Total.
Source: http://en.wikipedia.org/wiki/1940_United_States_Census
Reference 2: New York, Pennsylvania, Illinois, Ohio, California, Texas, Michigan, Massachusetts, New Jersey, Missouri, North Carolina, Indiana, Wisconsin, Georgia, Tennessee, Kentucky, Alabama, Minnesota, Virginia, Iowa, Louisiana, Oklahoma, Mississippi, West Virginia, Arkansas, South Carolina, Florida, Maryland, Kansas, Washington, Connecticut, Nebraska, Colorado, Oregon, Maine, Rhode Island, District of Columbia, South Dakota, North Dakota, Montana, Utah, New Mexico, Idaho, Arizona, New Hampshire, Vermont, Delaware, Wyoming, Nevada and Total.
Source: http://en.wikipedia.org/wiki/1940_United_States_Census
