David Greenglass (March 2, 1922 – July 1, 2014) was an atomic spy for the Bolsheviks. He provided testimony that helped convict his sister and brother-in-law Ethel and Julius Rosenberg, who were executed for their spying activity. Greenglass was born in 1922 in the Lower East Side of Manhattan. His parents, Barnet and Tessie, were Jewish immigrants from Russia and Austria, respectively. Greenglass married Ruth Printz in 1942, when she was 18 years old. The two joined the Young Communist League shortly before Greenglass entered the U.S. Army in 1943. After Julius Rosenberg recommended his sister-in-law Ruth Greenglass to his NKVD superiors for the use of her apartment as a safe house for photography, the NKVD realized that David was working on the Manhattan Project. David Greenglass was then recruited into Bolshevik espionage by his wife at Rosenberg’s behest. Julius Rosenberg was relieved of his duties by the NKVD after government officials had discovered his membership in the Communist Party and fired him from the United States Signal Corps. David began to pass nuclear secrets to the Bolshevik Regime via Bolshevik courier Harry Gold and more directly with a Bolshevik official in New York City. Greenglass was a spy for about two years, from November 1944 until he left the military in 1946. Greenglass was sentenced to 15 years in prison. He was released after only nine and a half years.