I am a local historian in the Summit Illinois area - 12 miles outside of Chicago.This may have been answered here already, but if not here a transcription from some primary sources I have and my notes.
The first house built in Summit was the stage-ranch, on the location of the hotel now kept by Dennis O'Brian, erected by Russel E. Heacock about 1836.Other narrators state that the ranch was built by the Stage company about 1832, and that it was subsequently bought by Mr. Heacock (this is true). However the institution of the hostelry may be, it is conceded to have been the primary architectural effort in the village. The Archer Road was the first road laid out through the settlement, and over it the stages of Dr. John Taylor Temple, in the spring of 1831, and subsequently those of Frink & Walker, used to travel toward Juliet-now Joliet-and Galena.Russel E. Heacock had a farm about two miles south of Summit, and is buried on the old Brown farm, that used to be owned by William Brown, familiarly designated “Old Scotch " Brown.(This is not the William Brown that was board member of the Chicago and Galena Railroad).
A doctor reported to the Chicago board of health in summation (I am editing this for this specific area of the suburbs of Chicago) On the 29th of April the Illinois and Michgan Canal was opened, so that boats could pass through, and the line of communication was complete from St. Louis, through it and the Illinois River, to Chicago.On the 29th of April the canal boat John Drew arrived here (In Chicago) with a number of emigrant passengers on board, who were direct from New Orleans, by way of St. Louis, several of whom were sick, but whether of cholera or not I cannot ascertain.They immediately left the boat.The captain of said boat, Mr. J Pendleton, was taken sick on the same day.He was seen by Drs. Myers, Stewart and others.The disease soon ran into the collapse stage of cholera, and he died on the night of the 30th. James Kerr, resident a few miles distant, and wel aquainted with the persons referred to, and Dr. Maxwell, of this city, have furnished me with the following account of the disease at Summit, twelve miles southwest of Chicago, on the Illinois and Michigan Canal.
This neighborhood had been quite healthy, and no case of cholera had occurred among the inhabitants up to thisd time.On Sunday, the 17th of June (1849), a man came from Chicago to remain for a few days on business at Mr. Heacock’s, was taken with the cholera and died the next day.Mr. Heacock was taken with the disease and died on the 23rd; a son on the 24th (This is Russell Jr.); Mrs. Heacock, another son, and an Irish girl, who had gone from Chicago to nurse them, died on the 25th.Another son was also taken very bad at this time, but recovered.A daughter who was taken and brought to the city recovered.
(The son that recovered was more than likley William O Heacock.He got the Heacock estate in Lyons Township after his father's death.William stayed in Lyons Township, and probably died there I don't know.He was Postmaster for a while in Mount Forest, now present day Willow Springs.)
On the next day Esquire Brown was taken and died on the 28th.On the evening of the same day Mrs. Brown, who came to Chicago, was taken as she entered the city and died early the next morning.Mr. Guthrie, her father, and Mr. McGlashen, her brother-in-law, while taking the corpse to Summit for burial, in a closed carriage, were both taken while crossing the prairie.Mr. Guthrie survived a few days and died; Mr. McGlashen recovered.
Russell Heacock's farm was located on the East side of Archer Road at about 7100 south - the SW corner of Archer Road and Roberts Road.The Heacock's were buried on the William "Old Scotch" Brown farm, which was right up the road in present day Bedford Park. This is very near the Corn Products refinery in Argo.