I want to know the answer to the following question:
What cemetery in New Haven is situated next to the campus of Yale University and has been designated a National Historic Landmark?
All the background I'm provided with is that "The Union League Club of New Haven building, located on Chapel Street, is notable for not only being a historic Beaux-Arts building, but also is built on the site where Roger Sherman's home once stood; George Washington is known to have stayed at the Sherman residence while President in 1789 (one of three times Washington visited New Haven throughout his lifetime).". Is that enough to answer the question?