MD State Archives Census Index: (one of these him?)
Burch, John C, 1870, Age: 23, Sex: M, Race: W, b: MD, Census: St Mary’s Milestown P.O., Film # M7259 Pg 622 S1620-1-685
Burch, John D, 1870, Age: 25, Sex: M, Race: W, b: MD, Census: St Mary’s Chaptico P.O., Film # M7259 Pg 603 S1620-1-686
Not listed with his wife and child: 1870MDStM4DStClmtsBay24/596
298 Dwg 156 Fam 156 Burch Mary 32 F W, At Home, B: MD, Cannot Read/Write & George 10 M W (Enumerated with Hill, William D. 55)