- The Governor General of Canada
The contents of this Register are intended for research purposes only. The heraldic emblems found in the Register may not be reproduced in any form or in any media without the written consent of the Canadian Heraldic Authority and/or the recipient.
Derwyn Evan Howard Rokeby-Thomas
Kirkton, Ontario
Registration of Arms
September 15, 2025
Vol. VIII, p. 417
Click on each image to enlarge. The blazon and symbolism for each element will accompany the enlarged image.
Blazon
Arms
Or on a chevron Vert between three Cornish choughs Sable a maple leaf Or, all within a bordure chequy Or and Vert;
Crest
A sun Or between two white trilliums slipped and leaved proper;
Motto
ILLUMINO;
Symbolism
Arms
The Canadian Heraldic Authority does not have confirmed symbolism for this emblem. The following comments are hypotheses only. A chevron and three birds are commonly found in the coats of arms of persons bearing the surname Rokeby, as well as in some Thomas coats of arms. The Cornish choughs are also known as “rooks,” thus making a canting reference to the surname. The maple leaf refers to Mr. Rokeby-Thomas’s Canadian nationality. The border is a Scottish method of differencing.
Crest
The Canadian Heraldic Authority does not have confirmed symbolism for this emblem. The following comments are hypotheses only. The sun appears in the crest of an English Nairne family and thus marks this aspect of Mr. Rokeby-Thomas’s ancestry. The trilliums refer to his home province of Ontario.
Motto
This Latin word means “I illuminate.” It connects to the sun in the Crest.
Background
Canada Gazette Information
The announcement of the Letters Patent was made on January 1, 1900, in Volume 0, page 0 of the Canada Gazette.
Artist Information
Creator(s)
Original concept of the Court of the Lord Lyon, Edinburgh.
Painter
* Not applicable / Sans objet
Calligrapher
* Not applicable / Sans objet
Recipient Information
Individual
The recipient’s emblems were originally recorded in the records of the Court of the Lord Lyon, Edinburgh, Scotland, 25 January 1972.