Born: 1793-06-08 New Hampshire
Jonathan Dearborn was a hotelier, postmaster, justice of the peace, and state legislator. In June 1815, he married Nancy Walker in Plymouth, New Hampshire. In 1841, Dearborn and his family moved from New Hampshire to Dearborn County, Indiana. In April 1844, the family moved to Havana, Illinois, where Jonathan built and operated a hotel. From December 1845 to November 1849, he served as postmaster of Havana. Dearborn was among the first justices of the peace for Brown County. In 1849 and 1855, he represented Brown County in the Illinois House of Representatives. In 1850, Dearborn was living in Elgin, Illinois, and owned real property valued at $1,000. By 1860, Dearborn was employed as a machinist and owned real property valued at $2,000 and a personal estate of $200.
"Application for Membership, James Henry Dearborn," Sons of the American Revolution Membership Applications, 1889-1970, Louisville, Kentucky: National Society of the Sons of the American Revolution; New Hampshire Marriage Records 1637–1947, New Hampshire Bureau of Vital Records, Concord, NH; New Hampshire, Birth Records, through 1900, New Hampshire Bureau of Vital Records, Concord, NH; Blue Book of the State of Illinois 1909 (Danville: Illinois Printing, 1909), 266, 270; Combined History of Schuyler and Brown Counties, Illinois (Philadelphia: W. R. Brink, 1882), 142, 144; Record of Appointment of Postmasters, 1832-1971, NARA Microfilm Publication, M841, 145 rolls, Records of the Post Office Department, RG 28, 1845-1855, 18:132, National Archives Building, Washington, DC; Register of all Officers and Agents, Civil, Military, and Naval, in the Service of the United States, on the Thirtieth September, 1847 (Washington, DC: J. & G. S. Gideon, 1847), *413; Register of all Officers and Agents, Civil, Military, and Naval, in the Service of the United States, on the Thirtieth September, 1849 (Washington, DC: Gideon, 1849), 476*; The History of Menard and Mason Counties, Illinois (Chicago: O. L. Baskin, 1879), 515, 757-58; U.S. Census Office, Seventh Census of the United States (1850), Elgin, Kane County, IL, 15; U.S. Census Office, Eighth Census of the United States (1860), Elgin, Kane County, IL, 333.