None of the links will work on this partial page as it is a photo, but you can see the actual full page here if it still exists. I will update the photo when Treasury Board (TB) posts a new competition.
If the text is too hard to read, hold down the CTRL key (lower left on keyboard) and move the wheel on your mouse forward or back to increase the size. This page from TB was modified December 21, 2010.
A lightkeeper is known as an LI to the Treasury Board. The levels of a lightkeeper go from LI-1 (lowest) to LI-9 (highest). The dates below (with references A, B, C) refer to dates when pay increases take effect, the last to be August 5, 2013.