1826 Sangamon Co, IL. He served in the Winnebago Indian War in Capt Thompson's Co of Col Neale's detachment of IL Mounted Riflemen. In the same unit was brother, John G.
2/22/1830 Springfield, Sangamon Co, IL. Voting at the courthouse were Isaac, his father, and brothers, William and Thomas.
3/1830 Sangamon Co, IL. Isaac and brothers, James and John G, were among those signing a petition to fill the vacancy of Constable.
1830 At census time Isaac lived next door to Joseph Smith, possibly Mary's brother, down the road was his sister Elizabeth and John Bracken, and in the same county were John M Berry and John Ooley, relatives of Eliza Purvis Powell. At the time Isaac was 20-30 years old with a family that included 1 male under the age of 5, another male also 20-30, and 1 female 20-30.
1831 E Nelson Twp, Shelby Co, IL. The county history recorded his arrival in the county on this date.
11/29/1836 Isaac was still a resident of Shelby Co when he bought 40 acres in Moultrie Co at S9 T13N during a federal sale, paying $1.25/acre.
1840 Shelby Co, IL. At census time he was 30-40 years old with 2 males under 5, 2 males 5-10, 2 females under 5, and his wife, also 30-40, living in his house. Neighbors were the families of siblings, Jeremiah Standifer, Mahalia Purvis and George Purvis, living in a row, one after the other.
1841-3 Shelby Co, IL. He and several brothers were named in probate records as purchasers at several estate sales during these years.
1848 Sangamon Co, IL. He was named in a guardian's case file, particulars unknown, but he left minor orphan children when he died.