I've just posted Mansur's book, Shamcher: A Memoir of Bryn Beorse and his Struggle to Introduce Ocean Energy to the United States as a pdf on the Shamcher Archive site, and also listed it on the pages of this site (above at Mansur's Memoir page). You can find it here.
It was interesting to lay out, and read closely. It shows a great example of letting the ideal guide you – no matter what the external indications may reveal. Many thanks to Mansur for his accurate documentation!
Looking forward to any of your comments on this work, so please add them here.