The National Trust for Historic Preservation has designated the May Hicks Curtis House in Flagstaff's Southside neighborhood as one of America’s 11 Most Endangered Historic Places.
The home on South Leroux Street is where May Hicks Curtis — known as the "'Betsy Ross' of Arizona" — sewed the first state flag in 1911.
Hicks built the home on South Leroux Street off the original alignment of Route 66 in 1913 adjacent to two boarding houses she operated with her mother.
She lived and worked in the house for decades before her death in 1970.
The May Hicks Curtis House was recently threatened by demolition with new development planned for the lot.
However, the City of Flagstaff took ownership of the house and plans to temporarily relocate the structure to a city-owned property. Once a permanent location is identified, the house will be moved for a final time and rehabilitated for community use while still commemorating its significance.
In a statement, the National Trust said the annual list identifies "compelling, meaningful historic sites are at risk, whether from natural disasters, underutilization, neglect, or lack of awareness."
This year's list from the National Trust includes another Arizona location — a unique stone mansion known as the Mystery Castle in Phoenix. In the 1930s, Boyce Luther Gulley built the home for his daughter without any plans, permits or training. It later became a well-known tourist attraction.