Major-General George Kitching (left) and Lieutenant-General Guy Simonds (right)
listening to Marshal Bernard Montgomery addressing the troops of II Canadian Corps
in Coptherne (England), February 29th, 1944.
http://www.junobeach.org/e/3/can-pep-can-kitching-e.htm
Thank you both, Zofo and Matzos. I think I found what I was looking for somewhere form my HDD anyway.
Why do I care about General Simonds? Correct me if I am wrong.
I suspect he was the first person who introduced the fully enclosed
track armored personnel carrier during the war :?: ,
although improvised.
I also admire him because after the war, when he went back to Canada,
he probably proudly said to those parents “I saved your boys’ lives as possible as I could.”
The vivid descriptions about the invention of the Kangaroos can be
found from the book “Guns of Normandy by George Blackburn (ISBN: 0771015003).”

CLICK FOR LARGE MAP
Also the website
http://www.1cacr.org/index.html
Thanks to this site that I have learned there are at least 2 different models of Kangaroos:
M7 Priest Kangaroo, and Ram Kangaroo.
In his book, Blackburn seems saying about the former ones only.
I posted both of them here for sharing. Forgive me if I go repetitive --- I am new here after all. :lol:
For using as an APC, the howitzers were dismantled during Totalize Operation.