- World War, 1914-1918--Propaganda.77
- World War, 1914-1918--Protest movements--France--Songs and music2
- World War, 1914-1918--Social aspects.77
- World War, 1914-1918--Songs and music57
- World War, 1914-1918--United States--Posters1
- World War, 1914-1918--United States--Songs and music4
- World War, 1914-1918--War work--Posters1
- World War, 1914-19191
- World War, 1914-19211
- World War, 1939-1945--France1
- World War, 1939-1945--Jewish resistance2
- World War, 1939-1945--Monuments1
- Yom Kippur10
- Ypres, 1st Battle of, Ieper, Belgium, 1914--Pictorial works4
- Ypres, 2nd Battle of, Ieper, Belgium, 1915--Pictorial works4
- Ypres, 3rd Battle of, Ieper, Belgium, 1917--Pictorial works4
- Yucca Giant-Skipper1
- Zabulon Skipper1
- Zionists2
- Zizith2