The late John F. McHugh taught in the Faculty of Theology at the University of Durham. His commentary in the International Critical Commentary series on John’s Gospel (2009) was only released with chs. 1-4 due to his sudden death.
Dr. McHugh, however, has a splendid quote in regard to the doctrine of the Trinity in relation to its development:
Those who listened to Jesus during his life-time did not come already endowed with faith in a Trinitarian Godhead, nor did those who heard the preaching of the Apostles: it was not a matter of teaching people who already believed in a Holy Trinity that one of those divine persons had become a human being. Neither in Judaism nor elsewhere is there any trace of such belief. -A Critical and Exegetical Commentary on John 1-4, 51.