David Roark

On the back of this picture it says David Roark, he is beside Railroad tracks.

My Grandpa Cicero 'CB' Badger had this picture in with his other pictures, his sister Julie Badger(born 1877/78) married Walter Calvin Roark and they had 4 children;Rex,Betsy,Butler and Edward. Julia died between 1909-10 and Walter Remarried(?)Mollie(?). This picture has been a real mystery in our family--whether it's a relative of Julie's or one of her children. I would also like to know where Julie is buried at.
If anyone could also tell me about when this was taken I would appreciate it.Thanks so much for any help.
People in photo include: David Roark