America.  Phineas Pratt was probably the first Pratt arrival in America, coming to Massachusetts Bay with Thomas Weston in 1622 and helping to establish the Wessagusett plantation.  Forty years later as an old man, he wrote an account to the court of Massachusetts of the colonists' early struggles.  He lived onto the ripe old age of ninety.  Joshua Pratt arrived at Plymouth on the Anne in 1623.  Matthew Pratt came in the 1630's and settled in Weymouth.

John and William Pratt were Puritans who had settled in Hartford, Connecticut in 1636.  From this lineage came Jared and the Mormon Pratts.  There are, because of multiple wives, a staggering 30,000 descendants of the 18th century Jared Pratt.  

Massachusetts later produced one remarkable Pratt family.   Henry Pratt was born in Wrentham in 1771, the son of Noah and Hannah Pratt.  He became the famous New England organ builder of his time.  His son Addison was first a Yankee whaler and then a Mormon missionary in the Pacific islands.  His wife Louisa Barnes Pratt, from whom he was later separated, became better known to the wider public after her memoirs of missionary work and pioneer life was published.

Virginia received one notable Pratt.  A son of Charles Pratt, Earl Camden, was said to have had difficulties at Oxford University.  He therefore decided to emigrate to America rather than to embarass his father.  Charles and his brother John settled in Virginia in the 1790's, acquiring estates in Caroline County.  Martha Pratt returned from Virginia to England with her husband in the early 1800's.  But she left a painting of herself at the Shirley plantation manor.

Daniel Pratt made his mark in the South in the years prior to the Civil War.  He had moved to Alabama from New Hampshire in the 1830's and was really the South's first industrialist in what was then mainly an agricultural economy.

Pratts also headed West, in particular to Kansas.  The most celebrated was Caleb Pratt, a young Civil War officer who died in the conflict and after whom Pratt, Kansas is named.  Ephraim Pratt and his wife Betsy came to farm in Neuchatel, Kansas in 1869 (after he lost his animals in a prairie fire he became a preacher). Alfred Pratt arrived from Indiana in 1876 and was one of the first settlers in Hamilton county.  A Pratt family from Yorkshire came to Kansas in 1878 and built the Cottonwood Ranch (which stayed in family hands for almost a century).

Canada.  Newfoundland can boast not only the poet E.J. Pratt, but also the painter and printmaker Christopher Pratt.  He designed the flag for Newfoundland which was adopted by the provincial legislature in 1980. 

Pratts arrived elsewhere in Canada as the 19th century proceeded.  Alexander Pratt from Scotland operated a grist mill in Cobourg, Ontario in the 1870's.  Robert and Henry Pratt were early settlers in the 1890's on the Canadian Pacific Coast side, at Kamloops in British Columbia.   And Ralph Benjamin Pratt arrived from Sydenham in Kent in the 1890's as well and became an architect for the Canadian National and Canadian Pacific Railways.