John Malveaux of MusicUNTOLD.com writes:

I learned composer William Grant Still conducted the Los Angeles Philharmonic July 23, 1936 many years ago.  However, I  only learned on Dec 5, 2021 from a Facebook post by Joshua Cheek that Margaret Rosezarian Harris was the 1st Female African American to conduct the Los Angeles Philharmonic. However, I am not surprised that the historical event occurred during the tenure of Maestro Zubin Mehta.  Please see  https://www.latimes.com/archives/la-xpm-2000-mar-23-mn-11896-story.html and  https://www.youtube.com/watch?v=cfa9VFWsfKw. See pic (Facebook)