this could maybe be called a little detail?'
S/S Isle struck a mine while in Tees Bay. A futile attempt to beach her, resulted in her finally sinking off Hartlepool at 54 41'14"N -01 10'44"W.

And this:
A mine dropped in the Alexandra Dock exploded
at 12.02 on 26/2/41 and sank the lighters Monarch and Brakelu.
The casualties were thirteen killed and twenty-seven seriously
injured.(guess this is your Brakelier)


Regards
Erik E