Mildred Iatrou Morgan was born in Astoria, New York. She studied filmmaking at The City College of New York. In the 1980s she moved to San Francisco and worked for Francis Ford Coppola’s American Zoetrope as anassistant editor, sound editor and documentary film editor and at Pixar as a film editor. After moving to Los Angeles in the late 1990s, Mildred focused on sound editing for feature films and has been working as a supervising sound editor since 2006. She's been nominated for two BAFTA awards for sound (La La Land, First Man) and two Oscars for sound editing (La La Land, First Man). She lives with her husband, R.A. Morgan, in Los Angeles, California.