The ideal of an universal science without national boundaries, has occasionally obscured the reality of the consistent national trends which have doubtless occurred in research and theorising of different specialities. In our field, according to Ribot, there were a century ago two existing branches of Psychology, in Germany and England respectively, which could be characterized by differentiating traits. This work aims to raise some reflections on the existence of these national trends in the History of Psychology, as regards to most prominent authors in the field. Our aim is to assess the presence and influence of German eminent scientists bom in the past century, in the current Psychology, as well as their possible clustering face to authors of different nationality. Both, a quantitative study of their influence on various selected English-speaking sources, and a qualitative analysis in terms of generation, nationality and scientific activity are included.