 Gore 's wife died in 1834 ; the couple had no children . The major beneficiary of the Gore estate was Harvard ( which received an estimated $ 100 @,@ 000 ) , although bequests were also made to the American Academy of Arts and Sciences and the Massachusetts Historical Society . The Waltham estate passed through several hands and was subdivided over time . The mansion was saved from demolition by the Gore Place Society ( established for the purpose of preserving it ) , which now operates it as a museum . It was declared a National Historic Landmark in 1970 . 
 Gore <a href='null_genetive' title='1'><mark>'s</mark></a>wife died in 1834 ; the couple had no children . The major beneficiary of the Gore estate was Harvard ( which received an estimated $ 100 @,@ 000 ) , although bequests <a href='uninflect' title='2'><mark>were</mark></a> also made to the American Academy of Arts and Sciences and the Massachusetts Historical Society . The Waltham estate passed through several hands and was subdivided over time . The mansion was saved from demolition by the Gore Place Society ( established for the purpose of preserving it ) , which now <a href='uninflect' title='3'><mark>operates</mark></a> it as a museum . It was declared a National Historic Landmark in 1970 . 
Gore  wife died in 1834 ; da couple had no children . Tdamajor beneficiary of thdaore estate was Harvard ( which received an estimated $ 100 @,@ 000 ) , although bequests was also made to thedaerican Academy of Arts and Sciences and the dasachusetts Historical Society . The Wdaham estate passed through several hands and was subdivided ova time . The mansion was saved from demolition by the GodaPlace Society ( established fa the purpose of preserving it ) , which now operate it as a museum . It was declared a National Historic Landmark in 1970 .