Header menu on blank page

On custom built pages how to I add the header and menu to them? I have several pages that do not show the menu on them… how can I fix that?

Here are some samples

http://www.smartgroupfirm.com/what-we-believe-2/perspective-wall-st-to-main-st/

http://www.smartgroupfirm.com/what-we-believe-2/the-scg-process/

please advise and let me know how to add a header menu to these kinds of pages