1) German surname 
[motorcycle] Hecker was a company in Nürnberg, Germany that manufactured motorcycles from 1922 until 1956. Production began with engines supplied by Scharrer & Groß. In 1925 S & G started making their own motorcycles so Hecker switched to engines from 198cc to 548cc bought from JAP in London, England. In the late 1920s Hecker also manufac...