When she was 20, she married John W. King on April 11, 1860 in Woodford County. John was born about 1840 in Illinois. He was the son of Enoch King and Celia Ann Owen.
John and Isabella's children included:
Capitolia King (1861) and
Elmer King (1863).
At the time of the 1880 census they were living in Olio, Woodford County, Illinois.
When she was 48, she died on March 28, 1889 of consumption. John died in September, 1898 in La Salle, Illinois. He was hacked to death with a corn knife.
King--Died, Thursday, March 28 at her late home in Eureka of consumption. Mrs. Isabelle King, wife of J. W. King.
Mrs. King has been afflicted for a number of years with that dread disease and her death has been daily expected for weeks. The funeral will be held at the house to-morrow at 11 o'clock and the remains will be laid to rest in the Eureka cemetery. She leaves a husband and two children, a son and daughter, both grown, to mourn her loss. Sheriff Owen and wife came from there this morning but will return again to attend the funeral.