Hi Lorne,
Many thanks for passing that book on to a possible relative. You see,being an Ironside(my mother's maiden name) I too have one of those books (currently mislaid...buried deep in years of accumulation!). From memory it has a dark blue hard cover, into which is imprinted an emblem consisting of a cross, with crosslets, over which is enscribed the words "IN HOC SIGNO VINCES" ..... roughly meaning "Beneath This Cross I Conquor".
I vaguely remember this to have been reputed to be King Alfred's motto.
Yes, I am British, and live in "Wessex" ....Alfred's territory! ... not far from Winchester, and Chippenham, both of which were Alfred's strongholds.
Don't know of a "Dover" line, but apparantly there was some emigration to Canada from the Scottish line.
Regards ....Mike