There are so many of these, and to the eye of anybody but a parent or grandparent, most of them look pretty much alike. Consider the story about Winston Churchill,
in answer to a friend who said "Winston! How wonderfully your new grandson resembles you!"... he (master of chiasmus that he was) is supposed to have responded, "All babies look just like me. But then, I look like all babies."
We are in a position to test the veracity of the proposition with this set, most of them studio photographs, mostly taken in The Boston States and sent to family in Nova Scotia, who duly placed them in albums: