I believe this could be John Madison Ragan, a son of Dr E. J. Ragan, a Cumberland Presbyterian Minister and also a medical doctor.This John M. was born August 28, 1846 thought in Tennessee.This family can be found on the 1850 census in Stewart County, Tennessee and on the 1860 census in Shiloh, Calloway County, KY.I have his death in Hastings, Adams County, Nebraska June 22, 1924, and is supposedly buried in the Parkview Cemetery.
To make this a bit shorter, his father, a staunch abolitionist before the war, was believed to have been killed by Southern partisans while called out on his rounds near his home in Calloway County, KY around 1861 or 1862.He went out on a call, and never returned. John, fled the area, also supposedly in fear for his own life, and is known to have joined the Union Army in either Illinois or Wisconsin.On a couple of census' he used different states of birth to throw anyone looking for him off his trail.Only after a successful career as cousel for the railroad and in later years did he reveal his origins.
He married Pauline Shallenberger in Dec 1882 in Toulon, Stark County,IL.
Advise if this seems a likely candidate for your inquiry.