You'll notice that in the picture of Mark with the suspenders his hair is a little uneven. His brother (and mine), Carl, had given him a hair cut a few days prior to the taking of this picture.
I found pictures of my brother Mark from when he was a little tyke about the age of my great nephew, Noah (Lori's son). The old black and whites are my brother, the other one is Noah at Emily's wedding. And, if you look really close, you will see the resemblance to Lori's daughter, Maddie as well.