In 1883, The Wayside was bought by Boston publisher Daniel Lothrop and his wife, Harriett. Harriett was the author of the Five Little Peppers series and other children's books using the pen name Margaret Sidney. The Lothrops added town water in 1883, central heating in 1888, and electric lighting in 1904, as well as a large piazza on the west side in 1887. The room that, after 1860, had served as Julian Hawthorne's bedroom became Mrs. Lothrop's dining room.
