Hello Tony and welcome,
"Crownies" was the popular name given to the vessels of Consolidated Fisheries Ltd
Get hold of the book "Crownies of Lowestoft" This will give you the full history of the company together with many photographs. There is mention of a H Norman being a skipper in 1938.
ABE Books have a copy
https://www.abebooks.co.uk/servlet/...an=m+white&tn=crownies+of+lowestoft&kn=&isbn=
Also Lowestoft Library. the depositry for the Port of Lowestoft Research Socitity records is very helpfull.
BRITISH. Official number 160993 GY249
Built as VINUR by Cook Welton and Gemmell16/07/1930 yard number 547.
Renamed BRITISH 1936
Requesitioned by RN on 27/08/1939 converted as a Minesweeper pennent number FY506, some sources say she was part of the 21st M/S group based at GY. returned 11/01/1946.
1954 sold to Wyre Steam Trawlers, Fleetwood renamed WYRE BRITISH. Broken up a Ghent 1957
The Book "Grimsby's Fighting Fleet" has no mention of her but gives a good narative of RN trawlers based at GY.
https://www.abebooks.co.uk/servlet/...v-_-Results&kn=grimsby's fighting fleet&sts=t
North East Linc's Archive may tell you something.
Full history and a photo here.
http://www.fleetwood-trawlers.info/index.php/2009/03/st-wyre-british-fd24/
regards
Roger