There is a Form 30A (Ocean Arrivals) document for Roderick John Macleod arriving Quebec, May 27, 1922 on the Metagama. There are lots of good clues on this document.
Some highlights of the doc:
he's married
current occupation is farming; intended occupation in Canada is farming and bridge building
was previously in Canada and previous occupation was with Hudson Bay Construction Co., Manitoba
port of previous entry was Montreal, 1909
port of departure was Montreal, 1915; reason for leaving was overseas service with 5th Can. Inf. Bat.
destined to his brother, Murdo Macleod, 4721 Avenue West, South Vancouver, BC
nearest relative in UK was his mother-in-law, Widow Mary Graham, 6 New Garrabost(?)
Here's a link to the document on LAC if you don't have access to Ancestry.
http://www.rootschat.com/links/0be5/ I don't think this info has been mentioned but my apologies if it has already been found.
Susan