MC
Mary Cochran — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macon-County, Illinois
Our Model Tree links this Mary Cochran across the 1920, 1930 and 1940 US Censuses in Macon-County, Illinois (XGBoost, ~Confirmed), with identified parents Annie & Charles — first a spouse (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Macon-County, Illinois |
| Surname | Cochran |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Hammond |
| 1935 Residence (County) | Piatt |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Decatur |
| Est. Birth Year | ~1917 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Andrew Cochran | Head | — | 29 | ~1911 |
| Wm Cochran | Other | — | 24 | ~1916 |
| Margaret Cochran | Other | — | 20 | ~1920 |
| Wilbur Cochran | Son | — | 6 | ~1934 |
| Mary Cochran | Spouse | — | 23 | ~1917 |
Census Appearances
1920
Macon, Illinois
Other, age 2
Macon, Illinois · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cochran |
| Given Name | Mary E. |
| Relationship to Head | Granddaughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Macon, Illinois
Daughter, age 13
Macon, Illinois · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cochran |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Macon-County, Illinois
Spouse, age 23
Macon-County, Illinois · implied b. ~1917 — 5 household members
| Surname | Cochran |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Hammond |
| 1935 Residence (County) | Piatt |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Mary Cochran across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Annie Morris (~0.84 confidence) and father Charles Morris (~0.84 confidence) and father Charles Cochran (~0.92 confidence) and mother Pauline Cochran (~0.92 confidence). The pedigree spans 2 generations with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Mother
Annie Morris
b. ~1859
Source mother>mother
● Household
· direct · ~0.84
Father
Charles Morris
b. ~1860
Source mother>father
● Household
· direct · ~0.84
Father
Charles Cochran
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Pauline Cochran
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Cochran
Spouse · 1940 · age 23 · b. ~1917 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Macon-County, Illinois
Open full size
1940 US Federal Census — Macon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00843-00222)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Verona Sebok | 45 | Wife | — | Hungary |
| 42 | Julia Sebok | 24 | Daughter | Machine Operator | Indiana |
| 43 | Paul Sebok | 22 | Son | Grinder | Illinois |
| 44 | Joseph Sebok | 20 | Son | Grinder | Illinois |
| 45 | Stephen Sebok | 16 | Son | — | Illinois |
| 46 | Julius Sebok | 6 | Son | — | Illinois |
| 47 | Roy Marshall | 49 | Head | Construction Helper | Illinois |
| 48 | Susie Marshall | 39 | Wife | — | Tennessee |
| 49 | Eugene H. Marshall | 20 | Son | Kitchen Helper | Illinois |
| 50 | Herschel B. Madder | 37 | Head | Machinist Helper | Illinois |
| 51 | Icie H. Madder | 30 | Wife | — | Tennessee |
| 52 | Jack R. Madder | 13 | Son | — | Illinois |
| 53 | Sydney B. Madder | 11 | Daughter | — | Illinois |
| 54 | Charles Madder | 9 | Son | — | Illinois |
| 55 | Marie Madder | 7 | Daughter | — | Illinois |
| 56 | James T. Knott | 22 | Brother-in-law | Cook | Illinois |
| 57 | Beverly M. Knott | 5 | Niece | — | Illinois |
| 58 | Francis L. Chaney | 21 | Head | Carpet Layer | Illinois |
| 59 | Ruth P. Chaney | 23 | Wife | — | Illinois |
| 60 | Patsy A. Chaney | 7 | Daughter | — | Illinois |
| 61 | Martha V. Chaney | 3 | Daughter | — | Illinois |
| 62 | Mildred Chaney | 0 | Daughter | — | Illinois |
| 63 | Andrew E. Cochran | 29 | Head | Carpenter | Illinois |
| 64 | Mary E. Cochran THIS PERSON | 23 | Wife | — | Illinois |
| 65 | Wilbur S. Cochran | 6 | Son | — | Illinois |
| 66 | Wm. H. Cochran | 24 | Brother | Painter | Illinois |
| 67 | Margaret Cochran | 20 | Sister-in-law | — | Illinois |
| 68 | John Johne | 46 | Head | Owner | Austria |
| 69 | Christina Johne | 37 | Wife | — | Austria |
| 70 | Coy E. Gist | 42 | Head | — | Illinois |
| 71 | Emma M. Gist | 38 | Wife | — | Illinois |
| 72 | Evelyn L. Gist | 19 | Daughter | Maid | Illinois |
| 73 | Margaret L. Gist | 18 | Daughter | Practical Nurse | Illinois |
| 74 | Edward A. Gist | 16 | Son | Kitchen Helper | Illinois |
| 75 | Marvin B. Gist | 15 | Son | — | Illinois |
| 76 | Darrel N. Gist | 12 | Son | — | Illinois |
| 77 | Charles H. Gist | 10 | Son | — | Illinois |
| 78 | Lloyd D. Gist | 8 | Son | — | Illinois |
| 79 | Janice M. Gist | 6 | Daughter | — | Illinois |
| 80 | Joan L. Gist | 5 | Daughter | — | Illinois |
Pedigree Summary
Mary
Gen 1 · 2 parents
~0.92
Gen 2 · 2 grandparents
~0.84
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)