One of the individuals Myers mentions in The Glory Field is Marian Anderson.
In 1939, the Daughters of the American Revolution (DAR) refused to allow Anderson to sing to an integrated audience in Constitution Hall. These were the days of segregation, and although the DAR supported ideals of freedom and equality, they were certainly not color-blind.
Below is the footage of a performance held in protest.
MARIAN_ANDERSON_1939_LINCOLN_MEMORIAL_HISTORY_FILM_
We also watch a video of Anderson singing “Ave Maria.”