Ryan's Mammoth Collection was published in Boston in 1883, containing 1050 reels, jigs, hornpipes, strathspeys, etc. In 1940 it was repackaged and marketed as Cole's 1000 Fiddle Tunes (also known as The Fiddler's Bible). Finally, in 1995 it was once again published, this time reverting to the Ryan's Mammoth title. Whichever form it has taken, this collection has been an invaluable store of tunes for countless fiddlers and other musicians, and it is a remarkable snapshot of the repertoire of 19th century America.
so say
http://www.nigelgatherer.com/books/ryan.html
"The Massasoit Hornpipe" appeared in that collection. It was common to name hornpipes for politically important figures, and Massasoit certainly qualified. The melody, however, can be traced back to a Scottish strathspey called "The Back of the Change House," which appears in a manuscript of William Clarke of Feltwell, who was active ca. 1820-1840.
http://www.maryhumphreys.co.uk/William_Clarke.php
Here's the tune from Ryan's Mamoth Collection.
The story of how the the mammoth collection came into existence recounted by Andrew Kuntz at The Fiddler's Companion site.
http://www.ibiblio.org/fiddlers/ryan1.htm