Hines-Rinaldi Funeral Home

11800 New Hampshire Ave, Silver Spring, MD


Diane Horowitz

November 26, 1928November 24, 2019

Horowitz, Diane (Age 90) died peacefully, surrounded by family, on November 24th, 2019 in Olney, Maryland. She was loving wife to Emanuel (d. 2017), devoted mother to Amy, Andy, Alice, and Alan (Sandy), proud grandmother to Daniel (Rachel), Micah (Rachel), Jonathan, Sandra (Arsalan), Joel (Emily), Zachary, Max, Ariel, and Sarah, enthusiastic great grandmother to Alyan, Luca and Aniya, beloved sister to Arlene, and cherished aunt to Karen, Lee, Paul, Claudia and Margo. She was a treasured friend to so many and her memory will live on in everyone she touched. Diane was born in Brooklyn, New York on November 26, 1928 to Nettie and Irving Silverman. She grew up surrounded by music, her mother and her aunts and uncles worked in the day and were musicians after hours. Her father was an electrician who worked on the Statue of Liberty and loved a smooth cigar. She grew up in the Flatbush section of Brooklyn and graduated from Thomas Jefferson High School. After high school she studied sculpture in Greenwich Village and considered relocating with her studio to Paris. Diane met her beloved husband Emanuel (Manny) Horowitz at a dance at the St. George Hotel in Brooklyn. They were married on August 6, 1950. After a honeymoon camping trip in Manny’s Army tent, they moved to Anacostia Washington DC and then Silver Spring, Maryland. Diane had a full life raising 4 active children while supporting her husband who worked at the National Bureau of Standards (now the National Institute for Standards and Technology) during the day and attended graduate school in the evenings. In the pre-internet era, Diane was a news freak, with a brilliant analytical mind and relentless appetite for debating the political issues of the day. She took an early stand against the War in Viet Nam and stood unwaveringly for Civil Rights. She served as an election judge in Montgomery County, Maryland for many years. As Manny’s scientific career blossomed, she joined him at International conferences, using the opportunity to study about cultures globally. Once her kids grew up and left home for school and jobs, Diane fulfilled her dream of going to college, earning a B.A. and M.S. in Gerontology from the University of Maryland. She also worked as a docent and researcher at the National Gallery of Art. Diane was actively involved in the lives of her children and grandchildren attending horse shows, soccer games, performances , and even cooking Matzoh Ball soup for Sweet Honey In The Rock concerts. Diane and Manny moved to Leisure World in Silver Spring in 2004 and continued to live an active life for the remainder of their 66 years together, staying fully engaged with their family and lifelong friends. Funeral services will be held Wednesday, November 27th, 2019 at 10 am in the Chapel at Judean Gardens 16225 Batchellors Forest Road Olney, Maryland 20832. Shiva will be held November 27th, 2019 at 12 pm at Leisure World Overlook Building Social Room (Lobby Level) 3100 N. Leisure World Blvd. Silver Spring, Maryland 20906 Donations in Diane’s name can be made to Planned Parenthood or the ACLU.


  • Funeral Service Wednesday, November 27, 2019
  • Burial Wednesday, November 27, 2019

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