Hello: my name is Allyn Pratt and I am researching for my ancestors. Based on my research I believe the following is accurate. Phineas Pratt arrived in Mass. (near current day Weymouth) in 1822 on the ship named 'Sparrow'. Macute (Matthew) Pratt (1595 to 1672), in some accounts, is documented to have arrived in the fall of 1623 at about the same location. Note, other sources show he did not arrive until 1638.
At this point it is not determined if they were brothers or cousins (closely related). Based on information from, 'Genealogy and Family History of Central New York, 1912, page 646' the discussion includes information on a Thomas Pratt (will dated Feb. 5, 1538/39 and lived at Baldock, county of Hertz, England) who had three sons and a daughter. The sons are, Thomas, James and Andrew. The daughter's name is Agnes. Andrew Pratt's family line is discussed here as his line contains the Pratts (John and William, sons of Andrew) that were part of the original settles that founded Hartford, Conn. However, this same record does not provide a discussion on the two other brothers (Thomas and James). Perhaps this is the connection where Phineas and Macute are related? (Other records show that Macute' s father was a Thomas Pratt). What is implied, and confirmed by history, is that both Phineas (by way of the failed Weston colony and then the Plymouth colony) and Macute (by way of the Weymouth (Wessagusset) colony) established the Pratt name in America.