You know me too well. I remember starting "Navigation" in 2nd year at Waid. We were asked if we had any connections with the sea.... I'd gotten as far as my Cousin John who was a designer at Millers when the teacher stopped me - "Is your name McBain?" "Yes" - he just turned to the next guy!
Anyway, enough tittle-tattle.
I've had a great list of Allans from St Monans going back to 1686 from a chap in Canada. There are over 500 family groups listed! I'm up to about number 30 in matching them into my database, but you reply prompted me to lookfor a connection and there she was. Jean Allan is, indeed, John Allan & Euphan Dick's daughter. ;-)
If you'd like to know more about the Allans let me know and I'll pass you on to my contact as I don't want to release his data 2nd hand - I'm sure you understand.
Is your Great-Granny Janet Allan b 20th Dec 1857 to David Allan & Elizabeth Irvine? There are a few Janets listed, but I see that David died in 1875. If she is we are certainly connected through the Allans, but that would simply be confirming pretty strong suppositions!
I don't know anything about the Blakeney, I'm afraid. If you are looking at fishing boats in general you could maybe help me with something else - Wullie McBain and Tam Dunn were both lost off Shetland, apparently on a maiden trip on Wullie's new boat in worsening weather from the middle of the fleet. It would be in the late 1800s or early 1900s, but I've nothing else - ring any bells?