Nellie E. Brown Mitchell (1845 – January 5, 1924) was an American concert singer and music educator, "one of Boston's favorite cantatrices.

[15] In 1876, she conducted a group of 50 girls in a cantata, Laila, the Fairy Queen, as part of the Centennial Musical Festival in Boston.

[16] Mitchell also invented the "phoneterion", a device meant to help train proper tongue position for vocal students.

[17] In July of 2023, the Black Heritage Trail of New Hampshire unveiled a historical marker at the entrance to the Pine Hill Cemetery in Dover, NH, highlighting Mitchell's contributions.

He was a disabled veteran of the American Civil War, having lost a foot as a member of the 55th Massachusetts Infantry Regiment.