Hi Jonathan! Merging two profiles together is pretty easy. Just go to this page: http://www.wikitree.com/index.php?title=Special:MergePerson
It's best to merge newer profiles into older profiles, so in this case you'll want to merge Ensing-9 into Ensing-1. So, in the ID 1 field, put Ensing-9, and in the ID 2 field, put Ensing-1. Click Initiate a Merge.
This will bring you to a page where, for every data field in the profile (date of birth, etc.) you can choose which one to keep. In this case it'll be easy, because the two profiles don't disagree on any fields. Then just click Confirm Merge, and it's done!
If you have any trouble, you can either comment here (or ask a new question), or email me at Lianne@wikitree.com. :)