Height started working as a caseworker with the New York City Welfare Department and, at the age of twenty-five, she began a career as a civil rights activist when she joined the National Council of Negro Women. She fought for equal rights for both African Americans and women, and in 1944 she joined the national staff of the YWCA. She also served as National President of Delta Sigma Theta Sorority from 1946 to 1957. She remained active with Delta Sigma Theta Sorority thoughtout her life. While there she developed leadership training programs and interracial and ecumenical education program
In 1957, Height was named president of the National Council of Negro Women, a position she held until 1997. During the height of the civil rights movement of the 1960s, Height organized "Wednesdays in Mississippi",[5] which brought together black and white women from the North and South to create a dialogue of understanding.
American leaders regularly took her counsel, including First Lady Eleanor Roosevelt, and Height also encouraged President Dwight D. Eisenhower to desegregate schools and President Lyndon B. Johnson to appoint African American women to positions in government. In the mid 1960s, Height wrote a column entitled "A Woman's Word" for the weekly African-American newspaper, the New York Amsterdam News and her first column appeared in the March 20, 1965 issue on page 8.
Height served on a number of committees, including as a consultant on African affairs to the Secretary of State, the President's Committee on the Employment of the Handicapped, and the President's Committee on the Status of Women. In 1974, Height was named to the National Council for the Protection of Human Subjects of Biomedical and Behavioral Research, which published The Belmont Report, a response to the infamous "Tuskegee Syphillis Study" and an international ethical touchstone for researchers to this day.
In 2004, Height was recognized by Barnard for her achievements as an honorary alumna during its commemoration of the 50th anniversary of the Brown v. Board of Education decision.
The musical stage play If This Hat Could Talk, based on her memoirs Open Wide The Freedom Gates, debuted in the middle of 2005. It showcases her unique perspective on the civil rights movement and details many of the behind-the-scenes figures and mentors who shaped her life, including Mary McLeod Bethune and Eleanor Roosevelt.
Height was the chairperson of the Executive Committee of the Leadership Conference on Civil Rights, the largest civil rights organization in the USA. She was an honored guest and seated on stage at the inauguration of President Barack Obama on January 20, 2009.
She attended the National Black Family Reunion, celebrated on the National Mall in Washington, D.C., every year until her death in 2010.
On March 25, 2010 Height was admitted to Howard University Hospital in Washington D.C. for unspecified reasons. Her spokeswoman issued a statement stating that at that time she was in a "very serious, but stable" condition but that they were remaining optimistic about her recovery. On April 20, 2010, Height died at the age of ninety-eight. Her funeral service at the Washington National Cathedral on April 29, 2010 was attended by President and Mrs Obama plus many dignitaries and notable people. She was later interred at Fort Lincoln Cemetery.
