Rule dating younger
At first glance, Medellin women do not perceive me as a foreigner due to the way I look.So I do not have that instant “gringo effect” on them.Therefore the photo is more than likely Michael and Peter, perhaps taken before Peter left for Kansas to live with relatives, leaving Michael behind.
In the early 1870s, Michael would have been in his twenties and Peter in his teens and both were living in St. Timothy would have been too young to be either brother.
You may not think to look on the Internet for help in dating old photographs, but actually it's the best place to go.
See also: Safely store, display your old family photographs.
Most of my close friends here in Medellin are foreigners and I have seen girls break their neck checking them out as we walk down the street.
So I do not get that immediate attention here in Medellin.