MJ
Mildred Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Nassau-County, New York
Our Model Tree links this Mildred Johnson across the 1920, 1930 and 1940 US Censuses in Nassau-County, New York (XGBoost, ~Confirmed), with identified parents Emile & Charlotte — first a daughter (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Female
Daughter
Born: Sweden
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Nassau-County, New York |
| Surname | Johnson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Sweden |
| 1935 Residence (City) | Westbury Village |
| 1935 Residence (County) | Nassau |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Title Guarantee Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2362 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Stenographer |
| Township / Ward | Westbury Village |
| Est. Birth Year | ~1908 |
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 1940 census.
| Name | Relation to head | Relative to Mildred | Age | Birth yr |
|---|---|---|---|---|
| Florence Johnson | Daughter | — | 22 | ~1918 |
| Mildred Johnson | Daughter | — | 32 | ~1908 |
| Lottie Johnson | Head | — | 60 | ~1880 |
| Carl Johnson | Son | — | 18 | ~1922 |
Census Appearances
1920
Nassau, New …
Daughter, age 11
Nassau, New York · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Sweden |
| Year of Immigration | 1912 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Year of Naturalization | 1914 |
| Birthplace (normalized) | sweden |
1930
Nassau, New …
Daughter, age 21
Nassau, New York · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1918 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Clerk Typist |
| Industry | Title Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Nassau-County, New …
Daughter, age 32
Nassau-County, New York · implied b. ~1908 — 4 household members
| Surname | Johnson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Sweden |
| 1935 Residence (City) | Westbury Village |
| 1935 Residence (County) | Nassau |
| Naturalization Status | Naturalized |
| Occupation | Stenographer |
| Industry | Title Guarantee Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 2362 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Mildred Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Emile Johnson (~0.92 confidence) and mother Charlotte Johnson (~0.92 confidence) and mother Lottie Johnson (~0.92 confidence) and mother Lottie Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Emile Johnson
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Charlotte Johnson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Lottie Johnson
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Lottie Johnson
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mildred Johnson
Daughter · 1940 · age 32 · b. ~1908 · New York
★ You are viewing this record
Sibling
Carl Johnson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Johnson
Sibling · 1940 · age 22
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 — Nassau-County, New York
Open full size
1940 US Federal Census — Nassau-County, New York
Page Contents
12 people indexed on this census page (nara:1940:m-t0627-02691-00825)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Peterson | 60 | Servant | Chauffeur | Ireland |
| 42 | George Peterson | 36 | Servant | Butler | England |
| 43 | Victoria Dragone | 56 | Head | — | Italy |
| 44 | Vito Dragone | 61 | Husband | Iron Worker | Italy |
| 45 | Victoria Degueres | 28 | Daughter | Operator | Italy |
| 46 | John Degueres | 37 | Son-in-law | Aeroplane Mechanic | Cuba |
| 47 | Stella Degueres | 5 | Granddaughter | — | New York |
| 48 | Marie Degueres | 4 | Granddaughter | — | New York |
| 49 | Lottie Johnson | 60 | Head | — | Sweden |
| 50 | Mildred Johnson THIS PERSON | 32 | Daughter | Stenographer | Sweden |
| 51 | Florence Johnson | 22 | Daughter | Nurse | Washington D.C. |
| 52 | Carl Johnson | 18 | Son | — | New York |
Pedigree Summary
Mildred + 2 siblings
Gen 1 · 4 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)