Claim: The William Ayers House is a two and a half story house which failed to make it on the National Register of Historic Places, a Canadian database for historic places, after multiple attempts.
Evidence: The house was listed on the National Register of Historic Places on July 8, 1999. The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance.