Extract from the 1850 Census:
Name: Edwin C Heacox
Age in 1850: 9
Estimated birth year: 1841
Birthplace: New York
Race: white
Gender: male
Home in 1850: Westmoreland, Oneida, New York
Occupation: attending school
Siblings living at home: Mary E (age 28), Francis (20), and Philomelia L (12)
Census place: Westmoreland, Oneida, New York; Roll M432_564; Page: 117A; Image: 239
Date: 17 Aug 1850

Extract from the 1860 Census:
Name: Charles Heacox
Age in 1860: 19
Estimated birth year: 1841
Birthplace: New York
Race: white
Sex: male
Relation to head-of-house: son
Home in 1860: Nettle Creek, Grundy, Illinois
Post office: Morris
Occupation: farm hand
Siblings living at home: none
Census place: Nettle Creek, Grundy, Illinois; Roll M653_181; Page: 220; Image: 220; Family History Library Film: 803181
Date: 26 Jul 1860

Extract from the 1870 Census:
Name: Charles E Heacox
Age in 1870: 29
Estimated birth year: 1841
Birthplace: New York
Race: white
Gender: male
Home in 1870: Northville, LaSalle, Illinois
Occupation: farmer
Value of real estate: $4695
Value of personal property: $1015
Post office: Northville
Census place: Northville, LaSalle, Illinois; Roll: M593_244; Page: 461; Image: 194
Date: 1 Aug 1870

Extract from the 1880 Census:
Name: Charles Heacox
Age: 39
Estimated birth year: 1841
Birthplace: New York
Race: white
Sex: male
Relationship to head-of-household: head
Home in 1880: Nettle Creek, Grundy, Illinois
Marital status: married
Father's birthplace: Connecticut
Mother's birthplace: Connecticut
Occupation: farmer
Census place: Nettle Creek, Grundy, Illinois; Roll: T9_209; Family History Film: 1254209; Page: 279.4000; Enumeration District: 4; Image: 0563
Date: 8 Jun 1880

He married Harriet Adelaide David 11 Sep 1867 in Grundy County, Illinois.

He also has a gravestone in Evergreen Cemetery in Morris, Grundy, Illinois, where his wife is buried. The memorial number is 242628852. The inscription reads Charles Heacox 1840 - 1890. He may not be buried there.