This is a 1945 recording from V-Disc of the Duckworth Chant in Raymond Hall, Ft. Slocum NY. It is led by S/Sgt Gladys "Woodie" Woodard of the WAC detachment, and is a specific WAC version of the chant. The visual is of that detachment marching in Central Park in late June 1944, just after the Duckworth Chant was composed at Ft Slocum by Pvt. Willie Lee Duckworth Sr.; it is very likely that this is what the WACs in the photo are vocalizing. The detachment is led by 1/Sgt Dorothy "Dot" Hood; S/Sgt Woodard is in the front rank, 3rd from the viewer's right.