JC
John Cochran — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Cochran across the 1920, 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Milton & Lida — first a son (b.~1912), then head of a 4-person household.
Age 18
b. ~1912
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Cochran |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Industry | Electric Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Wilkinsburg Borough |
| Est. Birth Year | ~1912 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Milton Cochran | Head | — | 63 | ~1867 |
| Lydia Cochran | Other | — | 57 | ~1873 |
| Charles Cochran | Son | — | 30 | ~1900 |
| John Cochran | Son | — | 18 | ~1912 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 8
Allegheny, Pennsylvania · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cochran |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 18
Allegheny, Pennsylvania · implied b. ~1912 — 4 household members
| Surname | Cochran |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Industry | Electric Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 29
Allegheny-County, Pennsylvania · implied b. ~1911 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cochrane |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Laborer |
| Industry | W P A |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 171 |
| 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 John Cochran across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Milton Cochran (~0.92 confidence) and mother Lida Cochran (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Milton Cochran
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Lida Cochran
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Cochran
Son · 1930 · age 18 · b. ~1912 · Pennsylvania
★ You are viewing this record
Sibling
Charles Cochran
Sibling · 1930 · age 30
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
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1993:0212)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Rose Brooks | 38 | Wife-H | — | Pennsylvania |
| 52 | Helen Brooks | 20 | Daughter | — | Pennsylvania |
| 53 | Jean Brooks | 15 | Daughter | — | Pennsylvania |
| 54 | Richard Brooks | 6 | Son | — | Pennsylvania |
| 55 | Frank Rafferty | 45 | Lodger | Engineer | Pennsylvania |
| 56 | William Howell | 56 | Head | Plumber | Maryland |
| 57 | Daisy E. Howell | 50 | Wife-H | — | Pennsylvania |
| 58 | William Dunkley | 52 | Head | Superintendent | Ohio |
| 59 | Katherine Dunkley | 50 | Wife-H | — | Pennsylvania |
| 60 | Winifred Flanagan | 59 | Head | — | Pennsylvania |
| 61 | Katherine Flanagan | 47 | Sister | — | Pennsylvania |
| 62 | Ann Flanagan | 49 | Sister | — | Pennsylvania |
| 63 | Joseph Mcconnell | 44 | Brother-in-law | R.R. Engineer | Pennsylvania |
| 64 | Hazel Mcconnell | 44 | Sister | — | Pennsylvania |
| 65 | Anna M. Mcconnell | 12 | Niece | — | Pennsylvania |
| 66 | Elizabeth Mcconnell | 10 | Mother | — | Pennsylvania |
| 67 | Joseph Mcconnell | 8 | Niece | — | Pennsylvania |
| 68 | Mary Jane Mcconnell | 6 | Niece | — | Pennsylvania |
| 69 | Frank O'Connell | 55 | Lodger | Salesman | Pennsylvania |
| 70 | Russell Groom | 45 | Lodger | Machinist | Pennsylvania |
| 71 | John King | 29 | Lodger | Clerk | Pennsylvania |
| 72 | William Leopold | 56 | Head | Principal | Pennsylvania |
| 73 | Barbara Leopold | 48 | Wife-H | — | Pennsylvania |
| 74 | Milton Cochran | 63 | Head | Manager | Pennsylvania |
| 75 | Lydia M. Cochran | 57 | Wife-H | — | Pennsylvania |
| 76 | Charles H. Cochran | 30 | Son | Agent | Pennsylvania |
| 77 | John M. Cochran THIS PERSON | 18 | Son | — | Pennsylvania |
| 78 | Thomas R. Walters | 65 | Head | Mill Foreman | Wales |
| 79 | Llewellyn Walters | 63 | Wife-H | — | S. Wales |
| 80 | Glyn R.F. Walters | 30 | Son | Office Clerk | S. Wales |
| 81 | Robert G. Walters | 2 | Grandson | — | Pennsylvania |
| 82 | Raymond D. Bevan | 36 | Son-in-law | Salesman | Pennsylvania |
| 83 | Blanche Bevan | 36 | Daughter | — | S. Wales |
| 84 | Raymond F. Bevan | 1 | Grandson | — | Pennsylvania |
| 85 | Margaret Walton | 44 | Head | Repairman | Pennsylvania |
| 86 | Mary Walton | 38 | Sister | — | Pennsylvania |
| 87 | Hilda Walton | 69 | Mother | — | Pennsylvania |
| 88 | Emmett L. Ames | 51 | Head | Trainman | Pennsylvania |
| 89 | Ella F. Ames | 51 | Wife-H | Telephone Op. | Pennsylvania |
| 90 | Nellie Beatty | 50 | Head | Saleslady | Pennsylvania |
| 91 | Willie Jane Beatty | 68 | Cousin | — | Pennsylvania |
| 92 | William Ross | 21 | Lodger | Student | Ohio |
| 93 | Harold Markle | 27 | Lodger | Student | Kansas |
| 94 | Rose Lines | 60 | Head | — | Pennsylvania |
| 95 | Elizabeth Lines | 23 | Daughter | — | Pennsylvania |
| 96 | Ruth M. Lines | 20 | Son | — | Pennsylvania |
| 97 | M. Alice Stricker | 68 | Brother | Retired | Pennsylvania |
| 98 | Reva Honey | 45 | Lodger | Teacher | Pennsylvania |
| 99 | Edna M. Vernon | 45 | Lodger | Teacher | Pennsylvania |
| 100 | Jeanette King | 24 | Lodger | Student | Massachusetts |
Pedigree Summary
John + 1 sibling
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)