The surname Prouty was first found in Bedfordshire where some of the first records of the family were listed in the Hundredorum Rolls of 1273: Hugh le Proude; and Robert le Proud. The same rolls listed: John Prude in Buckinghamshire; Cristina le Prute in Oxfordshire; and Herbert le Prute in Wiltshire. 
Two sources postulates that the name was "perhaps from Old English personal name Prud, and perhaps connected with Pryde." 
This web page shows only a small excerpt of our Prouty research. Another 139 words (10 lines of text) covering the years 1348, 1409, 1391, 1394, 1783 and 1852 are included under the topic Early Prouty History in all our PDF Extended History products and printed products wherever possible.
^ Bardsley, C.W, A Dictionary of English and Welsh Surnames: With Special American Instances. Wiltshire: Heraldry Today, 1901. Print. (ISBN 0-900455-44-6)
^ Black, George F., The Surnames of Scotland Their Origin, Meaning and History. New York: New York Public Library, 1946. Print. (ISBN 0-87104-172-3)
^ Barber, Henry, British Family Names London: Elliot Stock, 62 Paternoster Row, 1894. Print.
^ Filby, P. William, Meyer, Mary K., Passenger and immigration lists index : a guide to published arrival records of about 500,000 passengers who came to the United States and Canada in the seventeenth, eighteenth, and nineteenth centuries. 1982-1985 Cumulated Supplements in Four Volumes Detroit, Mich. : Gale Research Co., 1985, Print (ISBN 0-8103-1795-8)