Is Ruth Brady playing Sally's replacement on the switchboard?

Watching this movie first in 2009 and then in 2015 once again, I am puzzled by something I didn't catch before: Ruth Brady as Sally's switchboard operator replacement. I think it is Ruth Brady (Helen in Judy Garland's film The Clock and Ethel in Judy's The Harvey Girls), yet I see no mention of her name in these credits or on Ruth Brady's own page. I am puzzled and I could swear that was Ruth. Anyone out there can confirm this?