A new edition of Documenting Your Canadian Ancestors who served in World War One (1914-1918) or World War Two (1939-1945) with the Canadian Navy, by Kenneth Cox is now out from Global Genealogy. This updated 2024 edition includes more information on WW1 Merchant Seamen records.
Also reissued recently is Dictionary of Scottish Emigrants to Canada Before Confederation (pre-1867) Volumes 1, 2, 3 & 4,
by Donald Whyte. There’s more information here.
A little bird told me a new book is in preparation to be published by Global.