William was an enterprising man. He built the Central House, sometime in the 1880s – before 1894, and lived there on land across the street and a few lots toward town from his father’s land. The house known as "The Central House" was sold to William's sister, Sarah Frances Mayo and her husband Willard Wycliff Rich in 1905 and occupied by them as early as 1903.
“William I. Mayo and Annie E. Mayo House,” Southwest Harbor Public Library, accessed April 19, 2024, https://swhpl.digitalarchive.us/items/show/8837.Item 12861
