Michael Bloomberg, born February 14, 1942 in Boston, Massachusetts, was Mayor of New York City from 2002 to 2013. Bloomberg attended Johns Hopkins, receiving a B.S. in electrical engineering in 1964, and Harvard Business School, receiving an MBA in 1966. Bloomberg then worked on Wall Street at Salomon Brothers before founding his own company named Market Systems, which eventually became the highly successful and eponymous Bloomberg L. P. in 1987. Bloomberg became Mayor of New York City in 2002, shortly after the attacks of September 11, 2001. He is also a noted philanthropist through his Bloomberg Philanthropies Foundation, which has donated extensively to Johns Hopkins University among many others. The Johns Hopkins Bloomberg School of Public Health is named in his honor. In this oral history, Bloomberg discusses his student days at Hopkins in the 1960s and his philanthropic relationship with Hopkins. This oral history is part of the Mame Warren oral histories series.

Elizabeth Schaaf came to the Peabody Institute in 1965 as both a student, studying voice, and a staff member. She began working as a secretary in the Director's Office in 1982. Noticing a lack of proper documentation at the institute, she worked to secure grants and complete research in order to establish archives for the institute's records. In addition to documenting Peabody's history, Schaaf also created an archive for the history of music in Baltimore at Peabody. In this history, Schaaf recounts her time as both a staff member and a student as well as the development of the Peabody Collection. This oral history is part of the Mame Warren oral histories series.

Anne "Nan" Pinkard was a trustee of Johns Hopkins University and Baltimore philanthropist. Pinkard was the first woman to be elected as a full member of the Johns Hopkins Hospital's board, and served as president of the Johns Hopkins Women's Board at the same time. Pinkard's father Robert G. Merrick Sr. received undergraduate and doctoral degrees from Hopkins, and was also a university trustee from 1953 to 1968. In this interview, Pinkard discussed her family's relationship with the Garretts, one of the wealthiest and most prominent families in Maryland. She later goes on to talk about her role on the Women's Board at Johns Hopkins. This oral history is part of the Mame Warren oral histories series.

Samuel Hopkins was a Baltimore businessman, and advocate for preservation of Maryland historic sites. Hopkins was born and raised in Howard County and graduated from Johns Hopkins University in 1934. He was the great grand nephew of Johns Hopkins. Hopkins was active in politics and philanthropy in Maryland, and served as president of the Maryland Historical Society from 1970 to 1976. In this oral history, Hopkins describes his family's history and impact on the city of Baltimore, describing Johns Hopkins career and relationships with contemporaries such as Enoch Pratt, Moses Sheppard, and George Peabody. Hopkins also discusses life on campus during his time as a student during the Great Depression, describing his relationships with prominent faculty members such as Dr. Frederic Chapin Lane and Dr. Broadus Mitchell, as well as student organizations and activities. This oral history is a part of the Mame Warren oral histories series.