As a young man, Werner Holz served in World War I, returning in 1919. In 1926 he married Johanna Holz, née Lewitt. In 1929 their son Jürgen Rudolf was born.
Werner Holz had a number of occupations: he was an office clerk (in correspondence and customs dispatching), an insurance salesman, Berlin ‘subdirector’ for the life insurance company Braunschweigische Lebensversicherung AG, and finally, he worked for the forwarding agency August Mai Nachfahren, Edwin Kaiser Berlin.
The Holz family home was at Holsteinische Strasse 34 in Steglitz but their last address before their deportation was Kurfürstendamm 152. On 27 November 1941 Werner and Johanna Holz and their son Jürgen were deported to Riga, where all three were murdered on 30 November.