MJ
Margaret Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, New Jersey
Our Model Tree links this Margaret Johnson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, New Jersey (XGBoost, ~Confirmed), with identified parents Edward & Max — first a daughter (b.~1916), then head of a 3-person household.
Age 24
b. ~1916
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, New Jersey |
| Surname | Johnson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Sayreville borough |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Nurse |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 35 |
| Income (1939) | 1368 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Nurse |
| Township / Ward | Sayreville Borough |
| Est. Birth Year | ~1916 |
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 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Johnson | Daughter | — | 24 | ~1916 |
| Max Johnson | Head | — | 52 | ~1888 |
| Edgar Johnson | Son | — | 21 | ~1919 |
Census Appearances
1920
Middlesex, New …
Daughter, age 4
Middlesex, New Jersey · implied b. ~1916 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Margaret G |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read | No |
| Can Write | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Middlesex, New …
Daughter, age 14
Middlesex, New Jersey · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Middlesex-County, New …
Daughter, age 24
Middlesex-County, New Jersey · implied b. ~1916 — 3 household members
| Surname | Johnson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Sayreville borough |
| 1935 Residence (County) | Middlesex |
| Occupation | Nurse |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 35 |
| Income (1939) | 1368 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Margaret Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Johnson (~0.92 confidence) and father Max Johnson (~0.92 confidence) and father Edward Johnson (~0.92 confidence) and mother Margaret Johnson (~0.92 confidence) and mother Margaret Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Johnson
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Max Johnson
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Edward Johnson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Margaret Johnson
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Margaret Johnson
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Johnson
Daughter · 1940 · age 24 · b. ~1916 · New Jersey
★ You are viewing this record
Sibling
Edgar Johnson
Sibling · 1940 · age 21
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-t0627-02363-00047)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Baumann | 53 | Head | Brick Maker | Germany |
| 2 | Amelia Baumann | 28 | Daughter | Seamstress | New Jersey |
| 3 | Ruth Lunn | 47 | Wife | — | New Jersey |
| 4 | Charles Lunn | 47 | Head | Painter | New Jersey |
| 5 | Charles Jr. Lunn | 19 | Son | Chemist Helper | New Jersey |
| 6 | Muriel Lunn | 11 | Daughter | — | New Jersey |
| 7 | Jennie Chellicki | 27 | Wife | Cigar Maker | New Jersey |
| 8 | Joseph Chellicki | 32 | Head | Laborer | New Jersey |
| 9 | Adolf Soches | 63 | Head | — | Germany |
| 10 | Lizzie Soches | 66 | Wife | — | Germany |
| 11 | Harold Thessn | 41 | Son-in-law | Dispatcher | New Jersey |
| 12 | Elizabeth Thessn | 39 | Daughter | — | New Jersey |
| 13 | Sara Johnson | 48 | Wife | — | New Jersey |
| 14 | Max Johnson | 52 | Head | Janitor | New Jersey |
| 15 | Margaret Johnson THIS PERSON | 24 | Daughter | Nurse | New Jersey |
| 16 | Edgar Johnson | 21 | Son | Inspector | New Jersey |
| 17 | Anna Beckman | 54 | Head | — | New Jersey |
| 18 | Mabel Beckman | 53 | Daughter | — | New Jersey |
| 19 | Harrison Beckman | 53 | Son-in-law | Millwright | Penns |
| 20 | Harrison Beckman | 19 | Grandson | Helper | New Jersey |
| 21 | Ira Beckman | 15 | Grandson | — | New Jersey |
| 22 | Charles Munster | 54 | Head | — | Germany |
| 23 | Nancy Munster | 18 | Daughter | Paper Cutter | New Jersey |
| 24 | Mary Meagher | 49 | Wife | — | New Jersey |
| 25 | William Meagher | 54 | Head | Operator | New Jersey |
| 26 | William Jr. Meagher | 15 | Son | — | New Jersey |
| 27 | Doris Meagher | 13 | Daughter | — | New Jersey |
| 28 | Ruth Meagher | 12 | Daughter | — | New Jersey |
| 29 | Carl Klingler | 57 | Boarder | Mixer | Germany |
| 30 | Peter Vance | 60 | Head | Laborer | Denmark |
| 31 | Margaret Vance | 52 | Wife | — | Ireland |
| 32 | John Vance | 14 | Son | — | New Jersey |
| 33 | James Vance | 20 | Son | Laborer | New Jersey |
| 34 | Barbara Ryan | 50 | Wife | — | New Jersey |
| 35 | Mae Ryan | 19 | Daughter | — | New Jersey |
| 36 | John Ryan | 25 | Son | Pressing | New Jersey |
| 37 | John Ryan | 58 | Head | Helper | New Jersey |
| 38 | Mildred Ryan | 26 | Daughter | Operator | New Jersey |
| 39 | Jack Ryan | 14 | Son | — | New Jersey |
| 40 | Grant Loyd | 20 | Boarder | — | New Jersey |
Pedigree Summary
Margaret + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)