The unusual declaration in the will was reported in the Birmingham Daily Post, it said the bequest was "in view of the fact that I paid no premium for his career and he was no charge to me from the age of eighteen".
In that year he began a correspondence with Selwyn Pearce Higgins about the discovery of historical records of the Tramway.
These early books were self-published and were slim volumes, as printing paper was still rationed in the immediate post-war years.
Cozens was a friend of other notable early railway historians, including James Boyd,[3] and R. W. Kidner.
While many of his books have been superseded by more detailed histories, his work was influential on later authors[10] and provided important early coverage of the subject.