This collection holds the papers of Dorothy M. Hamm, a civil rights activist in Arlington, Virginia. However, almost the entire collection contains the papers she and her husband, E. Leslie Hamm, collected or created during their tenure serving their neighborhood citizens association, the John M. Langston Citizens Association for the High View Park/Hall's Hill neighborhood, a historically African-American community in Arlington.

Dorothy M. Hamm first became involved in civil rights in Arlington as a plaintiff in the civil suit filed by the National Association for the Advancement of Colored People that successfully desegregated Arlington Public Schools. Dorothy and her husband filed in May 1956 to admit their son E. Leslie Hamm Jr. to Stratford Junior High, an all-white school. Due to the Hamm's efforts, plus other Arlingtonians, Clarissa Thompson, Michael Jones, Ronald Deskins, and Lance Newman became the first black students admitted to a white school in Arlington (Stratford Junior High) on February 2, 1959. Hamm's son gained admittance to the school seven months later. Afterward, Dorothy became involved in other civil rights activities to integrate interscholastic athletics and other extracurricular activities in Arlington County Schools, to eliminate the discriminatory pupil placement form, to desegregate Arlington theaters, eliminate the poll tax, and remove race designation from public forms and voting records. Additionally, Hamm wrote several plays to promote African-American history and culture in the area. Her play Our Heritage: Slavery to Freedom 1766-1976 became an official bicentennial event in 1976 in Arlington County. She also wrote Our Struggle for Equality-25 Years Ago in 1984 for Black History Month and A Woman Called Moses about Harriet Tubman, presented at the Northern Virginia Folk Life Festival in 1985.

Hamm was born in Caroline County, Virginia, in 1919 and grew up in Fairfax County. She attended Miner Teachers College in Washington, D.C. In the early 1940s, she started work as a file clerk for the Veterans Administration. She eventually worked as an administrative assistant in the Treasury Department, Bureau of Engraving, at the Pentagon. In 1963, she retired from government work in the Surgeon General's Office. She then served as an officer of elections in Arlington County for twenty-seven years. Hamm was a delegate to the county and state Democratic conventions in 1964. She also became one of the first African Americans elected to a political party in Arlington County, elected to represent the Woodlawn precinct for the Democratic Committee. During her political career, she served as the county assistant registrar, the chief election officer in the Woodlawn precinct, and chairwoman of community voter registration drives.

Hamm and her husband moved to the Hall's Hill/High View Park neighborhood around 1950 and built their own home at 1900 N Cameron Street. They quickly became involved in the community and were active in their neighborhood association, the John M. Langston Citizens Association. Each served on several committees and in leadership positions. Dorothy even served as president of the citizens association during the 1960s and 1970s. Her husband Leslie served as the community representative to the Arlington County neighborhood conservation program to improve streets, gutters, sidewalks, and curb appeal in the Hall's Hill/Highview Park neighborhood.

The John M. Langston Citizens Association precedes the Hamm family by a number of years. The citizens association was created in 1924 to provide services for the Hall's Hill Neighborhood. The neighborhood is bounded from the north by Lee Highway, on the east by Buchanan Street/Culpepper Street, on the west by George Mason Drive, and on the south by 16th Street/17th Road/17th Street. The neighborhood was settled by newly freed slaves just after the Civil War, making it one of the oldest African-American neighborhoods in Arlington. It was named Hall's Hill because the upper portion of the neighborhood originally was owned by William Marcey and Basil Hall. Hall sold much of his land to his freed slaves. The neighborhood was renamed High View Park in 1965 because of the spectacular view of Arlington County it offers. At the time, some residents thought the neighborhood was renamed to make it more palatable to prospective white residents. In the 1800s, the neighborhood was relatively rural and simple. Residents had large gardens and raised hogs, chickens, and horses. Eventually, residents established their own stores and churches during the early 1900s. Until the 1950s, the neighborhood was separated on three sides from adjoining all-white neighborhoods by an 8-foot-high wooden fence, built by white homeowners whose houses backed up on lots in the Hall's Hill neighborhood. Despite being cut off from their surroundings and many county services during the early 20th century, the neighborhood developed its own fire station, community-wide events and celebrations, block parties, and even a community baseball team, known as the Virginia White Sox. Since the latter half of the 20th century, residents and the citizens' association fought to keep their neighborhood's character and space alive. Nearby Arlington Hospital and WETA-TV attempted to build medical offices and satellites in the neighborhood. White, middle-class residents starting buying homes in the neighborhood for the first time in the late 1970s due to the area's lower than average sale prices.

In 2018, the John M. Langston Citizens Association noted on its website that the neighborhood still maintained "an identity as a strong black community, the High View Park is a neighborhood is better represented by more racial diversity as new residents moved into the neighborhood. These new and long term residents still work together to maintain the historical, cultural and aesthetic values of the High View Park Neighborhood." The association still works to promote civic spirit and participation and foster communication among residents and property owners, as well as to preserve, enhance, and promote general welfare and safety of the neighborhood.

In 1987, Dorothy Hamm moved back to Caroline County, Virginia. She died on May 14, 2004.