American historian and author Ruth Edna Kelley of Massachusetts wrote the first book length history of the holiday in the US; "The Book of Hallowe'en" (1919), and references souling in the chapter "Hallowe'en in America"; "The taste in Hallowe'en festivities now is to study old traditions, and hold a Scotch party, using Burn's poem "Hallowe'en" as a guide; or to go a-souling as the English used. In short, no custom that was once honored at Hallowe'en is out of fashion now." Kelley lived in Lynn, Massachusetts, a town with 4,500 Irish immigrants, 1,900 English immigrants, and 700 Scottish immigrants in 1920. In her book, Kelley touches on customs that arrived from across the Atlantic; "Americans have fostered them, and are making this an occasion something like what it must have been in its best days overseas. All Hallowe'en customs in the United States are borrowed directly or adapted from those of other countries".