WC
William Cochran — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this William Cochran across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 11-person household.
Age 14
b. ~1926
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Cochran |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1926 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Ruth Cochran | Daughter | — | 23 | ~1917 |
| Sara Cochran | Daughter | — | 12 | ~1928 |
| Flora Cochran | Daughter | — | 7 | ~1933 |
| Hazel Cochran | Daughter | — | 22 | ~1918 |
| Velma Cochran | Daughter | — | 18 | ~1922 |
| Elizabeth Cochran | Daughter | — | 10 | ~1930 |
| Arthur Cochran | Head | — | 49 | ~1891 |
| Arthur Cochran | Son | — | 17 | ~1923 |
| William Cochran | Son | — | 14 | ~1926 |
| Mary Cochran | Son | — | 20 | ~1920 |
| Nora Cochran | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 9
Allegheny, Pennsylvania · implied b. ~1921 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cochran |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 14
Allegheny-County, Pennsylvania · implied b. ~1926 — 11 household members
| Surname | Cochran |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh City |
| 1935 Residence (County) | Allegheny |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Cochran
Son · 1940 · age 14 · b. ~1926 · Pennsylvania
★ You are viewing this record
Sibling
Arthur Cochran
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Cochran
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Flora Cochran
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Velma Cochran
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Cochran
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Cochran
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Cochran
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sara Cochran
Sibling · 1940 · age 12
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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03670-00080)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rachil Mabel Wood | 24 | Daughter | — | Pennsylvania |
| 42 | Mabel Wood | 0 | Granddaughter | — | Pennsylvania |
| 43 | Arthur Mccullough | 39 | Head | Laborer | Pennsylvania |
| 44 | Bertha Mccullough | 36 | Wife | — | W. Virginia |
| 45 | Wilbur Jr. Mccullough | 16 | Son | — | Pennsylvania |
| 46 | Bonnie Jean Mccullough | 13 | Daughter | — | Pennsylvania |
| 47 | Bertha Carr | 60 | Mother | — | W. Virginia |
| 48 | Albert J. Wilson | 36 | Head | Clerk | Ohio |
| 49 | Geraldine Wilson | 32 | Wife | Operator | Pennsylvania |
| 50 | Jerry Myers | 70 | Mother | — | Pennsylvania |
| 51 | Myrtilla Myers | 67 | Mother | — | Pennsylvania |
| 52 | William Miller | 35 | Head | River Pilot | Pennsylvania |
| 53 | Bertha C. Miller | 34 | Wife | — | Pennsylvania |
| 54 | William Jr. Miller | 10 | Son | — | Pennsylvania |
| 55 | Eugene Miller | 7 | Son | — | Pennsylvania |
| 56 | Robert Miller | 2 | Son | — | Pennsylvania |
| 57 | Arthur R. Cochran | 49 | Head | Clerk | Pennsylvania |
| 58 | Nora M. Cochran | 37 | Wife | — | Pennsylvania |
| 59 | Ruth Cochran | 23 | Daughter | Clerk | Michigan |
| 60 | Hazel Cochran | 22 | Daughter | Salesgirl | Pennsylvania |
| 61 | Mary Cochran | 20 | Son | Library | Pennsylvania |
| 62 | Velma Cochran | 18 | Daughter | — | Pennsylvania |
| 63 | Arthur Jr. Cochran | 17 | Son | — | Pennsylvania |
| 64 | William Cochran THIS PERSON | 14 | Son | — | Pennsylvania |
| 65 | Sara J. Cochran | 12 | Daughter | — | Pennsylvania |
| 66 | Elizabeth Cochran | 10 | Daughter | — | Pennsylvania |
| 67 | Flora May Cochran | 7 | Daughter | — | Pennsylvania |
| 68 | Paul Koontz | 45 | Head | Machinist | Virginia |
| 69 | Violet Koontz | 42 | Wife | — | Pennsylvania |
| 70 | Paul Jr. Koontz | 19 | Son | New Worker | Pennsylvania |
| 71 | James Koontz | 18 | Son | — | Pennsylvania |
| 72 | Jean Koontz | 16 | Daughter | — | Pennsylvania |
| 73 | Roger Koontz | 14 | Son | — | Pennsylvania |
| 74 | Doris Koontz | 11 | Daughter | — | Pennsylvania |
| 75 | Alfred Diven | 52 | Head | Policeman | Pennsylvania |
| 76 | Martha Diven | 41 | Wife | — | Virginia |
| 77 | Alfred Jr. Diven | 22 | Son | — | Pennsylvania |
| 78 | Robert Diven | 21 | Son | New Worker | Pennsylvania |
| 79 | Daniel Diven | 16 | Son | — | Pennsylvania |
| 80 | Howard Diven | 14 | Son | — | Pennsylvania |
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)