Farmers work on a salt marsh haystack
The early Boston area colonists used the Harbor Islands as a source of salt marsh hay, presumably for their own use. Although the settlers probably cut most of their hay from mainland marshes, there is evidence they also obtained some from the islands. William Wood wrote in 1634, for example, that colonists fetched hay from the islands in lighters (flat-bottomed barges) (Wood 1977 [1634]:59). And in 1650 the town of Boston gave a Thomas Munt permission to mow hay on Bird Island that year (B.R.C. 1881a:100).
In later centuries, hay may have been grown on the many islands on which farming and husbandry tool place (see below) in order to support the livestock being raised on those islands. An exception was Spectacle, where in 1742 the hay raised on the island was taken to South Boston (Sweetser 1988 [1888]:176). More common were islands where the hay grown was used on that island itself. This was certainly the case on Thompson, where the Farm School raised hay to feed its cows and horses, cutting over 100 tons in one year in the early 20th century (Stanley 1966:58). Hay was grown in the late 19th century on the Brewer estate at Worlds End (Walker and Walker 1984:45). Hay was also raised on Grape after it was acquired c.1892 by owners of a polo ground in Hingham who used the island to grow hay for and graze their polo ponies (Arato et al. 2000: Grape).