I have found that if you go to the Project page, there is usually a good explanation on when to use the associated template or sticker, where to place each one, etc. For the Civil War Project:
You want to use the sticker. Fill in the appropriate information for Joseph as you add it to his profile.
To find a list of all the current Projects, go to Find (at top of page) > click Projects. You’ll be taken to the page woth the alphabetical listing.