JC
John Cochran — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Norfolk, Massachusetts
Our Model Tree links this John Cochran across the 1920, 1930 and 1940 US Censuses in Norfolk, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1858), then head of a 3-person household.
Age 72
b. ~1858
Male
Head
Born: Scotland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Norfolk, Massachusetts |
| Surname | Cochran |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 23 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Occupation | carpenter |
| Industry | own business |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 5400 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Carpenter |
| Township / Ward | Weymouth Town |
| Est. Birth Year | ~1858 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Cochran | Head | — | 72 | ~1858 |
| John Cochran | Son | — | 50 | ~1880 |
| Jessie Cochran | Spouse | — | 70 | ~1860 |
Census Appearances
1920
Norfolk, Massachusetts
Head, age 59
Norfolk, Massachusetts · implied b. ~1861 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cochran |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Joiner |
| Industry | Shipyard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Norfolk, Massachusetts
Head, age 72
Norfolk, Massachusetts · implied b. ~1858 — 3 household members
| Surname | Cochran |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 23 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | carpenter |
| Industry | own business |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 5400 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Norfolk-County, Massachusetts
Other, age 84
Norfolk-County, Massachusetts · implied b. ~1856 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cochran |
| Given Name | John Sr |
| Relationship to Head | Father |
| Sex | M |
| Color / Race | White |
| Age | 84 |
| Marital Status | Widowed |
| Birthplace | Scotland |
| 1935 Residence (City) | Weymouth |
| 1935 Residence (County) | Norfolk |
| Naturalization Status | Naturalized |
| Industry | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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.
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This person
Anchor record
John Cochran
Head · 1930 · age 72 · b. ~1858 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Norfolk, Massachusetts
Open full size
1930 US Federal Census — Norfolk, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel938:0040)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Mary E Cummings | 2 | daughter | None | Massachusetts |
| 52 | Thornton E Hoar | 32 | head | Salesman | Massachusetts |
| 53 | Dorothy B Hoar | 32 | wife | None | Rhode Island |
| 54 | Robert B Hoar | 3 | son | None | Massachusetts |
| 55 | James W Macduff | 29 | head | Welder | Rhode Island |
| 56 | Isabelle Macduff | 22 | wife | None | Massachusetts |
| 57 | Joan D Macduff | 1 | daughter | None | Massachusetts |
| 58 | John F Dunbar | 31 | head | Police Officer | Massachusetts |
| 59 | Elizabeth H Dunbar | 28 | wife | None | Massachusetts |
| 60 | John F Dunbar | 9 | son | None | Massachusetts |
| 61 | William P Dunbar | 6 | son | None | Massachusetts |
| 62 | William Sparbrick | 59 | father-in-law | Steward | England |
| 63 | Walter J Fraser | 39 | head | Ironworker | Massachusetts |
| 64 | Mary E Fraser | 39 | wife | None | Massachusetts |
| 65 | Edna C Fraser | 16 | daughter | None | Massachusetts |
| 66 | John P Fraser | 7 | son | None | Massachusetts |
| 67 | Robert Fraser | 1 | son | None | Massachusetts |
| 68 | Paul Currie | 28 | head | Carpenter | Massachusetts |
| 69 | Lorena Currie | 22 | wife | None | Massachusetts |
| 70 | Eunice Currie | 4 | daughter | None | Massachusetts |
| 71 | Paul Currie | 3 | son | None | Massachusetts |
| 72 | Frank Currie | 2 | son | None | Massachusetts |
| 73 | Thomas W Grant | 45 | head | Clerk | Massachusetts |
| 74 | Lillian B Grant | 28 | wife | None | North Ireland |
| 75 | Walter W Grant | 1 | son | None | Massachusetts |
| 76 | Patrick Manning | 69 | head | Janitor | Massachusetts |
| 77 | Clara M Manning | 65 | wife | None | Massachusetts |
| 78 | Robert G Manning | 38 | son | Electrician | Massachusetts |
| 79 | Cassius C Billings | 42 | head | Fireman | Maine |
| 80 | Florence S Billings | 42 | wife | None | Massachusetts |
| 81 | Charles S Frizzell | 73 | father-in-law | None | Canada English |
| 82 | Wallace B Ireland | 38 | head | Carpenter | Massachusetts |
| 83 | Emily A Ireland | 37 | wife | None | Massachusetts |
| 84 | Virginia L Ireland | 14 | daughter | None | Massachusetts |
| 85 | Marjorie Ireland | 13 | daughter | None | Massachusetts |
| 86 | Janet H Ireland | 6 | daughter | None | Massachusetts |
| 87 | David Weir | 40 | head | Chipper | Scotland |
| 88 | Elizabeth Weir | 39 | wife | None | Scotland |
| 89 | Alice Weir | 14 | daughter | None | Massachusetts |
| 90 | Alice Weir | 10 | daughter | None | Massachusetts |
| 91 | John Cochran THIS PERSON | 72 | head | Carpenter | Scotland |
| 92 | Jessie Cochran | 70 | wife | None | Scotland |
| 93 | John Jr Cochran | 50 | son | Yes | North Ireland |
| 94 | Charles Daboll | 68 | head | Manager | Massachusetts |
| 95 | Lillian B Daboll | 62 | wife | Helper | Massachusetts |
| 96 | Mary F Riley | 60 | boarder | None | Massachusetts |
| 97 | Samuel J Wild | 70 | head | None | England |
| 98 | Libbie G Wild | 68 | wife | None | Vermont |
| 99 | Paul C Burt | 31 | head | Car Dealer | Massachusetts |
| 100 | Lillah A Burt | 35 | wife | None | Massachusetts |
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)