London bound

I dropped Ben and Jack at Cambridge train station to get a train into London to meet up with friends.  The exchange?  To be my blip.

Like Sam and Ross, these two have known each since they were very young, they went to the same schools here in the village and even the same university.  Extra is a photo of them at Ben's 11th birthday party.  I wonder if you can recognise which ones they are more than half their lives ago.