Log in and go to google calendars. On the left side, you will see a box for “my calendars” and another below it for “other calendars”.  Directly under “other calendars” is a box that says “add a friend’s calendar”.  Start typing in a name (such as “Jennifer”) and a list should pop up which includes that name. Click on the name and that person's calendar should be added to your “my calendars” section.

Also note:

• You can hide or show a calendar by clicking on it in the "my calendar" list. 
  
• All of the LCF-LU accounts should theoretically show up, but not everyone will have filled in his calendar (he may also have disabled calendar sharing)

See also, How do I share my calendar?