The colonies were split into three parts; New England in the North East, known for manufacturing and fishing, the Middle Colonies in the center, known for livestock and tobacco, and the South in the South West, known for agriculture. The New England Colonies include Massachusetts, New Hampshire, Rhode Island, and Connecticut. The Middle Colonies include New York, Pennsylvania, New Jersey, and Delaware. The South included Maryland, Virginia, the Carolinas, Georgia. Keep in mind that occasionally Maryland is considered a Middle Colony.
William Levitt worked for his father's company Levitt and Sons and after coming back from war came up with the assembly-line techniques to help build more affordable homes for soldiers coming back from war