Eva Marie Saint is credited as "WAVE", but the correct term would be WAVES which stands for Women Accepted for Volunteer Emergency Service.
The WAVES, like the Women's Army Corps (WAC) and Women's Airforce Service Pilots (WASP), was created after the U.S. entered WWII in 1941. It was acknowledged that service of women would be essential for victory. As the "W" in all the acronyms stands for the plural noun "women", all terms refer to the organization, not the individuals. However, it was common to refer to a single member of the groups as a WAC, a WAVE, or a WASP.
The WAVES, like the Women's Army Corps (WAC) and Women's Airforce Service Pilots (WASP), was created after the U.S. entered WWII in 1941. It was acknowledged that service of women would be essential for victory. As the "W" in all the acronyms stands for the plural noun "women", all terms refer to the organization, not the individuals. However, it was common to refer to a single member of the groups as a WAC, a WAVE, or a WASP.
Just after the Ghost of Christmas Future states there is no electricity, it can be seen that the shadows behind him are well-defined and steady on the background. As the only source of light is flickering candles, the shadows should have some motion and be less precise.
When Grudge is first being shown the people behind the fence by the Ghost of Christmas Present, the shadows of the snow shakers (that cause the fake snow to fall) can be seen on the floor/ground as the camera pans towards them as they are singing.
Lt. Gibson (Eva Marie Saint) states that 100,000 were killed the day Hiroshima was attacked and that it was "almost as many" killed as suffered by the Confederate States in the Civil War. Actually, the Confederacy lost many more killed --- an estimated 260,000.
When Grudge is talking to Fred at the beginning of the movie, Charles walks between them. A butler would pass behind the participants, not between them.