Thomas Martin Einstein
Albert Einstein had three children, Lieserl Maric (1902–1903?), Hans Albert Einstein (1904–1973), and Eduard "Tete" Einstein (1910–1965), but only Hans Albert is known to have married and had children. Hans Albert's only biological child to survive to adulthood was Bernard Caesar Einstein (1930–2008), who was a physicist and the father of Thomas Martin Einstein.
Hebrew University of Jerusalem
In his Will, Albert Einstein left the Hebrew University his personal papers and the copyright to them. The Albert Einstein Archives contain some 55,000 items. In March, 2012 the University announced that it had digitized the entire archive, and was planning to make it more accessible online. Included in the collection are his personal notes, love letters to various women, including the woman who would become his second wife, Elsa.