[2] Lett-Simmons was a consultant helping to lead the search that led to the appointment of Barbara D. Sizemore as District of Columbia superintendent of schools in 1973.
[2] On April to October 1978, Lett-Simmons was the subject of a drama of operatic proportions, when the school board meetings were held to look at the future of superintendent Barbara A. Sizemore, who was appointed in 1973.
[2] Lett-Simmons wrote a letter to The Washington Post, in which she complained about a travesty of justice and questioned whether the newspaper’s editorial board opposed Sizemore because she was black and female.
[2] Lett-Simmons aims were to broaden opportunities for inner city children, expand vocational training and make the schools more accountable to residents.
In 1990, she failed a bid to become District of Columbia's nonvoting delegate in Congress which she lost to Eleanor Holmes Norton.
[2] A Democratic elector from the District of Columbia in the 2000 United States presidential election, she cast a blank ballot in the Electoral College rather than vote for Al Gore for president and Joe Lieberman for vice president as was expected, in protest of the District of Columbia's lack of a voting representative in Congress.
[5] Mayor of the District of Columbia, Vincent C. Gray urged people in the gathering to follow Lett-Simmons example, stating, "If you want to celebrate Barbara’s legacy, do it by standing up and fighting until we get statehood.