Columbia subject headings:
Horne, Herbert P. (Herbert Percy), 1864-1916--Art collections--Congresses.
Museo Horne (Florence, Italy)--Congresses.
Harvard subject headings:
Horne, Herbert Percy, 1864-1916--Congresses.
Horne, Herbert Percy,--Art collections--Congresses.
Museo Horne (Florence, Italy)--Congresses.
Princeton subject headings:
Horne, Herbert Percy,--Art collections--Congresses.
Museo Horne (Florence, Italy)--Congresses.