Master Page Layers ordering

Objects on a Master Page layer appear to be in front of all other layers on individual pages.  I have a master layer with standard page background graphics, but on each individual page, I want a graphic on top of this background.

Is there a way to send this layer to be in back of all other layers and still be a Master layer?  The only solution I see is copying this background across 20 pages, which doesn't seem right.  Or change my design around the background, which I'd rather not do.

Thanks,