The building at this address stands on the spot where the home of Robert Wilson stood. A plaque is on the right side of the building explaining it's history. (The plaque can be seen on the right hand side of the pictures above if you look closely)
The plaque reads:
"Site of the home of Lt. and Mrs. Robert Wilson
Gen. and Mrs. George Washington were entertained here in November 1780 and at other times while the armies were encamped at Morristown." [1]
Sources:
1.^ Plaque placed in 1964 by General William Maxwell Chapter, D.A.R.; Peggy Warne Chapter, D.A.R. ; Jockey Hollow Chapter, S.A.R.