Is it because you spend some time in a developing country and these are some of the friends you made - in a church choir or something like that?
is that Matt in the back row??
this is the year you spent the summer in the DR and even though I can't see him Matt must be in the picture somewhere.
Is this a place that Matt went to go help? OR its a place that you went with your church to help, and you were the camera picture taker, hence why your not in the picture.
That does look like Matt in the back row. Is he eating a lollipop?