zamedy, "in 1" is an old term for the area downstage of the first set curtain (not the show curtain but the first curtain that shows a scene). Often that first set curtain was something general (such as palm trees for SOUTH PACIFIC) so that many different scenes could be played in front of it.
This is all before computerized wagons and the like, so if you look at Rodgers & Hammerstein librettos, you'll find they are written so that a short scene, song or reprise can be performed downstage or "in 1" while a full set is erected behind the curtain.
Their shows are written to be in 1, full stage, in 1, full stage, in 1, etc.
In CALL ME MADAM, Merman played an Oklahoma oil heiress who was made ambassadress to a small European duchy. (The character was modeled after Pearl Mesta, who became ambassadress to Luxumbourg.)
The character is being presented to the duke and duchess at a formal ball, so she has to wear a dress with a very long train. In 1 (i.e., before the DS curtain) Merman practiced walking in the dress while the full stage was set up for the ball behind the curtain.
She tries to kick the train out of her way, trips over it several time, does several minutes of very funny business and then--when the ballroom set is ready--she finally picks up the fabric and throws it over one elbow, announcing, "If this is a train, it must be the Super Chief!"
(You'll have to trust me that that was a very funny line in 1952, when train travel was still common. It was still funny enough in 1967.)
And with that, the "in 1" curtain rose and the entire cast was on stage and the ball in progress.
Does this make sense? If not, the problem is mine and I'll try again via PM.
I apologize for using specialized jargon. Before everything was automated and run by computers, "in 1" was a very common expression.
Updated On: 8/2/13 at 10:32 PM