I think we may be related.
My name is Alan Robert Physick born 1950. My father was "Bill" William Henry Physick born 1922? and died aged 54 in 1976.
My grandfather was Robert Physick born circa 1895. He was a Tug boat Captain on the Mersey. He lived in the Crosby, Waterloo area of Liverpool. I think his wife was Catherine?
They had 6 children: Lorna, Joyce, Pauline, colin, william (my Dad) and Eric.
His son Eric was also a Tug boat Captain and worked for "cock tugs" like the Heathcock and Thistlecock in the 60's 70' and 80's
I remember my Grandfathers brother ..my uncle Tommy...who was also a Captain.
Look forward to hearing from you