Heinz Billing died on January 4, 2017 at the age of 102 years. He is the designer of the first electronic computers on the european continent. In Göttingen, just after the 2nd World War Heinz Billing invented the Magnetic Drum Store and built the “Göttinger Rechenmaschinen” G1, G2, G1a and G3. In Munich, from 1970 until his retirement in 1982 he constructed antennas for detecting gravitational waves being a scientific member of the Max Planck Society. From the foundation of the GWDG until 1988 Heinz Billing was member of the scientific advisory council of the GWDG.
You can find an article on the occasion of his 100th birthday in the GWDG News 5/2014, which honors his lifework.