Sakin,
Thanks for the prompt reply. I found the solution to my problem.
For community edification:
In the “Edit Page” there was not an option to allow/disallow comments. However, up top, there is a grey tab, “Screen Options” twirl-down. Among the “Screen Options” check boxes is “Discussion.” After ticking this box in “Screen Options” I can now allow, or not, comments on this individual page.
Thanks for this attractive theme. My client is pleased.