BP
Bertha Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, New Jersey
Our Model Tree links this Bertha Peterson across the 1930 and 1940 US Censuses in Middlesex-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 10-person household.
Age 15
b. ~1925
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, New Jersey |
| Surname | Peterson |
| Given Name | Bertha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | New Brunswick |
| Est. Birth Year | ~1925 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Fred Peterson | Head | — | 44 | ~1896 |
| Alma Peterson | Daughter | — | 17 | ~1923 |
| Stella Peterson | Daughter | — | 11 | ~1929 |
| William Peterson | Son | — | 13 | ~1927 |
| Stella Peterson | Spouse | — | 43 | ~1897 |
| Fred Peterson | Son | — | 19 | ~1921 |
| Lillian Peterson | Daughter | — | 21 | ~1919 |
| Phoebe Peterson | Daughter | — | 10 | ~1930 |
| John Peterson | Son | — | 7 | ~1933 |
| Bertha Peterson | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Middlesex, New …
Daughter, age 4
Middlesex, New Jersey · implied b. ~1926 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Barbara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Poland |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Middlesex-County, New …
Daughter, age 15
Middlesex-County, New Jersey · implied b. ~1925 — 10 household members
| Surname | Peterson |
| Given Name | Bertha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Jersey City |
| 1935 Residence (County) | Hudson |
| Highest Grade | 6 |
| 1935 Residence | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Bertha Peterson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Peterson
Daughter · 1940 · age 15 · b. ~1925 · New Jersey
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Sibling
Phoebe Peterson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Peterson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alma Peterson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Peterson
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Peterson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Peterson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stella Peterson
Sibling · 1940 · age 11
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 — Middlesex-County, New Jersey
Open full size
1940 US Federal Census — Middlesex-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02360-00532)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Powers | 40 | Head | Janitor | New Jersey |
| 2 | Marie Powers | 36 | Wife | — | Austria |
| 3 | James Powers | 15 | Son | — | New Jersey |
| 4 | Peggy Powers | 14 | Daughter | — | New Jersey |
| 5 | Dolores Powers | 12 | Daughter | — | New Jersey |
| 6 | John Powers | 34 | Brother | Maintenance | New Jersey |
| 7 | Chester Bunting | 54 | Head | Janitor | New Jersey |
| 8 | Anna Bunting | 54 | Wife | — | New Jersey |
| 9 | William Bunting | 23 | Son | Machinist | New Jersey |
| 10 | James Bunting | 17 | Son | — | New Jersey |
| 11 | Anna May Bunting | 13 | Daughter | — | New Jersey |
| 12 | Patrick Toole | 57 | Brother-in-law | — | New Jersey |
| 13 | Catherine Toole | 54 | Sister-in-law | Housekeeper | New Jersey |
| 14 | James D. Mcclay | 62 | Head | Printing Pressman | New Jersey |
| 15 | Clara Mcclay | 57 | Wife | — | New Jersey |
| 16 | Lawrence Mcclay | 28 | Son | Laborer | New Jersey |
| 17 | Rose Mary Mcclay | 24 | Daughter | Ironer | New Jersey |
| 18 | Anna Mcclay | 22 | Daughter | Mangle | New Jersey |
| 19 | Edmond Buckelew | 45 | Head | Electrician | New Jersey |
| 20 | Elizabeth Buckelew | 45 | Wife | — | New Jersey |
| 21 | Edmond Jr. Buckelew | 18 | Son | Laborer | New Jersey |
| 22 | James Buckelew | 16 | Son | Farm Hand | New Jersey |
| 23 | Mary Buckelew | 14 | Daughter | — | New Jersey |
| 24 | Richard Buckelew | 12 | Son | — | New Jersey |
| 25 | Harold Buckelew | 9 | Son | — | New Jersey |
| 26 | Ann Buckelew | 8 | Daughter | — | New Jersey |
| 27 | William Buckelew | 6 | Son | — | New Jersey |
| 28 | Joseph Buckelew | 5 | Son | — | New Jersey |
| 29 | Fred Peterson | 44 | Head | Deck Hand | New York |
| 30 | Stella Peterson | 43 | Wife | — | Poland |
| 31 | Lillian Peterson | 21 | Daughter | Saleslady | New Jersey |
| 32 | Fred Jr. Peterson | 19 | Son | Packing Clerk | New Jersey |
| 33 | Alma Peterson | 17 | Daughter | Nursemaid | New Jersey |
| 34 | Bertha Peterson THIS PERSON | 15 | Daughter | — | New Jersey |
| 35 | William Peterson | 13 | Son | — | New Jersey |
| 36 | Stella Peterson | 11 | Daughter | — | New Jersey |
| 37 | Phoebe Peterson | 10 | Daughter | — | New Jersey |
| 38 | John Peterson | 7 | Son | — | New Jersey |
| 39 | Albert Demire | 51 | Head | Janitor & Night Clerk | Maine |
| 40 | Odelle Demire | 53 | Wife | — | Maine |
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)