The census is a good place to start. BUT... you have a very interesting ancestor. If you don't have a subscription to ancestry.com .. try a large LDS family history center. Many of them now have a subscription. There are many write-ups and several photos of Joshua Green in the Waukesha Freeman. He was Registrar of Deeds 1902-1906. When he stood for election in 1902, the newspaper did a background story. This is only highlights. Raised in Troy, NY at age 15, went to visit 2 brothers who were in the 125th NY fighting for the union. He stayed gone for 10mos. saw several large battles. Sent home with a fever, 2yrs. to recover. In 1890's chairman of the town of Summit and served 2 terms on county board Eldest son cadet at West Point (1902) Wish I had such an interesting gr.grandfather! Good Luck Judy