Original sentence: , died in 1954, the house became a museum.It officially opened to the public as a museum in 1957, and in 2001 was declared a National Historic Landmark.It was occupied by three generations of the Gibson family.The Gibson House Museum is a non-profit museum located at 137 Beacon Street in the Back Bay, Boston, Massachusetts
Edited sentence: , died in 1954, the house became a museum in 1957, and in 2001 was declared a National Historic Landmark.It preserves the 1860 building occupied by three generations of the Gibson family.It was paid for by the widowed Catherine Hammond Gibson, possibly the first female property owner in Back Bay.Its interior is a composite of family furnishings and pieces added to make it more complete.She passed it on to her son Charles Hammond Gibson.The Gibson House Museum is a historic house museum located at 137 Beacon Street in the Back Bay, Boston, Massachusetts.The Gibson House's landmark status is due to its claim that it is the only Victorian era row house in Boston's Back Bay to maintain the integral relationship between the exterior architectural shell and the original interior plan, with its accompanying decorative schemes