On the league page there is 'Draft History' option in the menu at the top which is initially showing the link to your league forum. It not only provides a list of all of the draftees but also shows where each draftee was on the preference list of the drafter. Unfortunately you can't directly see where any of your preferences were drafted other than those you drafted yourself.
In your case, in the first round you received the third player on your list. As you were picking 15th, it is not that surprising that you didn't get your first or second choice. If you know some other information about the player you had listed as #1, such as age, position, height, etc., you might be able to tell who got him by looking at the 14 players drafted before you picked.