MG
Mary Green — 1940 US Census Record
Model Tree available1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this Mary Green across the 1920, 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed), with identified parents James & Mary — first a daughter (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Green |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth city |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | Home |
| Industry | Home |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Home |
| Township / Ward | Elizabeth City |
| Est. Birth Year | ~1906 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Grace Green | Daughter | — | 40 | ~1900 |
| Mary Green | Daughter | — | 34 | ~1906 |
| Mary Green | Head | — | 74 | ~1866 |
| Starts Ends Block 8 | Other | — | — | |
| Bridget O'Connell | Other | — | 45 | ~1895 |
Census Appearances
Daughter, age 15
Union, New Jersey · implied b. ~1905 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Greene |
| Given Name | Mary M. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Union, New …
Daughter, age 25
Union, New Jersey · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Green |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Daughter, age 34
Union-County, New Jersey · implied b. ~1906 — 5 household members
| Surname | Green |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth city |
| 1935 Residence (County) | Union |
| Occupation | Home |
| Industry | Home |
| 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 Mary Green across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Green (~0.92 confidence) and mother Mary Green (~0.92 confidence) and mother Mary Green (~0.92 confidence) and father James Greene (~0.92 confidence) and mother Ida Greene (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Green
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Mary Green
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Mary Green
b. ~1866
Source mother
● Household
· direct · ~0.92
Father
James Greene
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Ida Greene
b. ~1866
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Green
Daughter · 1940 · age 34 · b. ~1906 · New Jersey
★ You are viewing this record
Sibling
Grace Green
Sibling · 1940 · age 40
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 — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02400-00138)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis O. Smith | 78 | Head | House Work | Tennessee |
| 42 | Mary Cuthbertson | 40 | Maid | House Keeper | Scotland |
| 43 | Marion Hopkins | 50 | Head | Development | Maryland |
| 44 | Sarah Hopkins | 42 | Wife | House Wife | Maryland |
| 45 | Virginia Hopkins | 15 | Daughter | — | Maryland |
| 46 | Bird Hopkins | 13 | Son | — | Maryland |
| 47 | Victor Hopkins | 3 | Son | — | New Jersey |
| 48 | Bernadene Fennell | 38 | Maid | House Work | North Carolina |
| 49 | Starts Block 8 Here Block 7 | None | — | — | — |
| 50 | William S. Gray | 71 | Head | Sales Agent | Pennsylvania |
| 51 | Margaret Gray | 67 | Wife | House Wife | New Jersey |
| 52 | Katharine Gray | 45 | Daughter | Saleswoman | Massachusetts |
| 53 | Edith S. Gray | 17 | Daughter | — | Massachusetts |
| 54 | William S. Jr. Gray | 14 | Son | — | Massachusetts |
| 55 | Daisy B. Graham | 48 | Maid | Maid | Virginia |
| 56 | Mary F. Green | 74 | Head | House Work | Maryland |
| 57 | Grace F. Green | 40 | Daughter | Nurse | New Jersey |
| 58 | Mary M. Green THIS PERSON | 34 | Daughter | Home | New Jersey |
| 59 | Bridget O'Connell | 45 | Maid | Maid | Ireland |
| 60 | Starts Block 13 Ends Block 8 | None | — | — | — |
| 61 | Martin P. Connor | 65 | Head | Lawyer | New York |
| 62 | Katherine B. Connor | 60 | Wife | House Wife | New Jersey |
| 63 | Martin B. Connor | 32 | Son | Lawyer | New Jersey |
| 64 | Richard S. Connor | 21 | Son | — | New Jersey |
| 65 | William Head Bigelow | 37 | Head | Broker | New Jersey |
| 66 | Eleanor E. Bigelow | 32 | Wife | House Wife | New York |
| 67 | Fay E. Bigelow | 2 | Daughter | — | New Jersey |
| 68 | Francis R. Pyne | 58 | Head | Metallurgist | New Jersey |
| 69 | Helen R. Pyne | 57 | Wife | House Wife | New Jersey |
| 70 | Jane Cuthbertson | 42 | Maid | Maid | Scotland |
| 71 | Gertrude Corbett | 54 | Head | Own Home | New York |
| 72 | Betty Mcsweeney | 61 | Sister | House Work | New York |
| 73 | Louis Whitlock | 55 | Head | Manufacturer | New Jersey |
| 74 | Mary Whitlock | 52 | Wife | House Wife | New Jersey |
| 75 | Allen Whitlock | 30 | Son | Advertising | New Jersey |
| 76 | Sonia S. Whitlock | 29 | Son | Advertising | New Jersey |
| 77 | James Whitlock | 23 | Son | Advertising | New Jersey |
| 78 | Marilyn Whitlock | 19 | Daughter | — | New Jersey |
| 79 | Francis Burke | 31 | Chauffeur | Chauffeur | Ireland |
| 80 | Bridget Burke | 32 | Cook | Cook | Ireland |
Related Census Records
Pedigree Summary
Mary + 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)