RC
Robert Cochran — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Ohio
Our Model Tree links this Robert Cochran across the 1930 and 1940 US Censuses in Marion-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Ohio |
| Surname | Cochran |
| Given Name | Robert F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Marion City |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Marion City |
| Est. Birth Year | ~1924 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| John Cochran | Son | — | 20 | ~1920 |
| Louis Cochran | Son | — | 22 | ~1918 |
| Anna Cochran | Daughter | — | 17 | ~1923 |
| Bernard Cochran | Son | — | 25 | ~1915 |
| Margaret Cochran | Daughter | — | 18 | ~1922 |
| Albert Cochran | Son | — | 26 | ~1914 |
| Robert Cochran | Son | — | 16 | ~1924 |
| Emma Cochran | Head | — | 58 | ~1882 |
Census Appearances
1930
Marion, Ohio
Son, age 6
Marion, Ohio · implied b. ~1924 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cochran |
| Given Name | Robert F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Marion-County, Ohio
Son, age 16
Marion-County, Ohio · implied b. ~1924 — 8 household members
| Surname | Cochran |
| Given Name | Robert F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Marion City |
| 1935 Residence (County) | Marion |
| Highest Grade | H 3 |
| 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 Robert Cochran across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Cochran
Son · 1940 · age 16 · b. ~1924 · Ohio
★ You are viewing this record
Sibling
Margaret Cochran
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Cochran
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernard Cochran
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Cochran
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louis Cochran
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Cochran
Sibling · 1940 · age 26
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 — Marion-County, Ohio
Open full size
1940 US Federal Census — Marion-County, Ohio
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03110-00508)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Emma Cochran | 58 | Head | — | Ohio |
| 42 | Albert E. Cochran | 26 | Son | Baker | Ohio |
| 43 | Bernard J. Cochran | 25 | Son | Baker | Ohio |
| 44 | Louis G. Cochran | 22 | Son | Clerk | Ohio |
| 45 | John J. Cochran | 20 | Son | Clerk | Ohio |
| 46 | Margaret M. Cochran | 18 | Daughter | Clerk | Ohio |
| 47 | Anna Cochran | 17 | Daughter | — | Ohio |
| 48 | Robert F. Cochran THIS PERSON | 16 | Son | — | Ohio |
| 49 | Samuel Bianchi | 49 | Head | Proprietor | Italy |
| 50 | Hazel Q. Bianchi | 46 | Wife | — | Ohio |
| 51 | Martha Bianchi | 22 | Daughter | Stenographer | Ohio |
| 52 | Gene Bianchi | 18 | Son | Bookkeeper | Ohio |
| 53 | Virginia Bianchi | 13 | Daughter | — | Ohio |
| 54 | Fay Pickler | 60 | Head | Clerk | Ohio |
| 55 | Etta Hordney | 75 | Mother-in-law | — | Ohio |
| 56 | Daniel F. Bird | 67 | Head | — | Ohio |
| 57 | Clara E. Bird | 68 | Wife | — | Ohio |
| 58 | Franklin E. Jr. Bird | 16 | Grandson | — | Ohio |
| 59 | Frank P. Murphy | 52 | Head | Physician | Ohio |
| 60 | Margaret Murphy | 52 | Wife | — | Ohio |
| 61 | Daniel Murphy | 22 | Son | — | Ohio |
| 62 | Mary Rita Murphy | 20 | Daughter | — | Ohio |
| 63 | Frank Jr. Murphy | 19 | Son | — | Ohio |
| 64 | Jack Murphy | 18 | Son | — | Ohio |
| 65 | Robert Murphy | 15 | Son | — | Ohio |
| 66 | Edward Murphy | 13 | Son | — | Ohio |
| 67 | Daniel H. Murphy | 77 | Head | — | Ohio |
| 68 | Harry E. Hessberger | 49 | Son-in-law | Collecting Agent | Ohio |
| 69 | Agnes Hessberger | 48 | Daughter | — | Ohio |
| 70 | Helen Hessberger | 22 | Granddaughter | Secretary | Ohio |
| 71 | Fred G. Freeman | 43 | Son-in-law | — | Pennsylvania |
| 72 | Mary F. Freeman | 42 | Daughter | — | Ohio |
| 73 | Anna M. Freeman | 11 | Granddaughter | — | Ohio |
| 74 | Mary C. Freeman | 10 | Granddaughter | — | Ohio |
| 75 | Emma Bradley | 65 | Head | — | Ohio |
| 76 | Robert A. Kelley | 28 | Head | Court Bailiff | Ohio |
| 77 | Margaret M. Kelley | 28 | Wife | — | Ohio |
| 78 | Kathleen Kelley | 2 | Daughter | — | Ohio |
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)