WC
William Cochran — 1940 US Census Record
Model Tree available1940 United States Federal Census · Harrison-County, Ohio
Our Model Tree links this William Cochran across the 1920, 1930 and 1940 US Censuses in Harrison-County, Ohio (XGBoost, ~Confirmed), with identified parents Robert & Nell — first a son (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harrison-County, Ohio |
| Surname | Cochran |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cadiz Village |
| 1935 Residence (County) | Harrison |
| Additional Details | |
| Occupation | Clerical Work |
| Industry | auto |
| Class of Worker | PW |
| Hours Worked | 66 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Clerical Work |
| Township / Ward | Cadiz Village |
| Est. Birth Year | ~1908 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Helen Cochran | Daughter | — | 26 | ~1914 |
| Nell Cochran | Head | — | 66 | ~1874 |
| William Cochran | Son | — | 32 | ~1908 |
| Samuel Cochran | Son | — | 31 | ~1909 |
Census Appearances
1920
Harrison, Ohio
Son, age 11
Harrison, Ohio · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cochran |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Harrison, Ohio
Son, age 21
Harrison, Ohio · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cochran |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Clerk |
| Industry | Bank |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Harrison-County, Ohio
Son, age 32
Harrison-County, Ohio · implied b. ~1908 — 4 household members
| Surname | Cochran |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cadiz Village |
| 1935 Residence (County) | Harrison |
| Occupation | Clerical Work |
| Industry | auto |
| Class of Worker | PW |
| Hours Worked | 66 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 William Cochran across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Cochran (~0.92 confidence) and mother Nell Cochran (~0.92 confidence) and mother Nell Cochran (~0.92 confidence) and father Neil Cochran (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Cochran
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Nell Cochran
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Nell Cochran
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
Neil Cochran
b. ~1875
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Cochran
Son · 1940 · age 32 · b. ~1908 · Ohio
★ You are viewing this record
Sibling
Helen Cochran
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Cochran
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Harrison-County, Ohio
Open full size
1940 US Federal Census — Harrison-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03083-00129)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Lee | 61 | head | Superintendent | Ohio |
| 2 | Martha Lee | 61 | wife | — | Ohio |
| 3 | David Elkins | 62 | head | Chemical Heating | Pennsylvania |
| 4 | Effie Elkins | 62 | wife | — | Ohio |
| 5 | Nell Cochran | 66 | head | — | Ohio |
| 6 | William Cochran THIS PERSON | 32 | son | Clerical Work | Ohio |
| 7 | Samuel Cochran | 31 | son | Painter | Ohio |
| 8 | Helen Cochran | 26 | daughter | Stenographer | Ohio |
| 9 | Everett Smith | 54 | head | Supt. | Ohio |
| 10 | Elsie Smith | 55 | wife | — | Ohio |
| 11 | Evart Porter | 38 | head | Traveling Salesman | Ohio |
| 12 | Helen Porter | 36 | wife | — | Ohio |
| 13 | Jean Porter | 10 | son | — | Ohio |
| 14 | Barry Porter | 5 | son | — | Ohio |
| 15 | David Porter | 71 | father | Farmer | Ohio |
| 16 | Fred Brokaw | 37 | head | Proprietor | Ohio |
| 17 | Katherine Brokaw | 37 | wife | — | Ohio |
| 18 | Frederick Brokaw | 14 | son | — | Ohio |
| 19 | Betty Jean Brokaw | 4 | daughter | — | Ohio |
| 20 | Edward White | 71 | head | Traveling Salesman | Ohio |
| 21 | Mary White | 69 | wife | — | Ohio |
| 22 | John P. Liggett | 49 | head | Operator And Farmer | Pennsylvania |
| 23 | Helen Liggett | 49 | wife | — | Pennsylvania |
| 24 | Thomas Liggett | 18 | son | — | Ohio |
| 25 | Harold Liggett | 11 | son | — | Ohio |
| 26 | A. G., Dr. Tubbs | 70 | head | Health Dir. | Ohio |
| 27 | Hanna Tubbs | 46 | wife | — | Pennsylvania |
| 28 | Frank Erkart | 17 | stepson | — | Ohio |
| 29 | Patricia Ann Erkart | 15 | stepdaughter | — | Ohio |
| 30 | Edna Johnson | 49 | niece | — | Ohio |
| 31 | Helen Mcfadden | 45 | head | — | Ohio |
| 32 | Barkley Moore | 56 | head | Judge | Ohio |
| 33 | Julia Moore | 48 | wife | — | Illinois |
| 34 | David Moore | 14 | son | — | Ohio |
| 35 | Donald Moore | 12 | son | — | Ohio |
| 36 | Julianne Moore | 11 | daughter | — | Ohio |
| 37 | Edna Mae Yoho | 19 | servant | Servant | Ohio |
| 38 | Henry Schreiber | 52 | head | Proprietor | Ohio |
| 39 | Annie Schreiber | 65 | wife | — | Ohio |
| 40 | Charles Schreiber | 21 | son | Presser | Ohio |
Pedigree Summary
William + 2 siblings
Gen 1 · 4 parents
~0.92
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)