John Clayborough Hawkhead
Wanting any information about John Clayborough Hawkhead who was the author of the book "Handbook of Technical Instruction for Marine Telegraphists" first published in 1913.
Thanks,
David
Wanting any information about John Clayborough Hawkhead who was the author of the book "Handbook of Technical Instruction for Marine Telegraphists" first published in 1913.
Thanks,
David