The dates and names that come to mind JS started in the OS industry Nov 66 left Oct 68 our home port was Gt. Yarmouth. Claim to fame was guarding the gas leak from Sea Quest rig, warning trawlers and other vessels away from the area so they didn't sink which some found laughable then carried on supplying here at Bridlington where she went for shelter then to rotterdam for repairs. The names you mention i dont recall however one famous one was Cap, Brownrigg & Peter Staunton. Keep safe Cap. R.