MC
Mary Crawford — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Mary Crawford across the 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1907), then head of a 13-person household.
Age 33
b. ~1907
Female
Spouse
Born: New Jersey
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Crawford |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 33 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark city |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Housewife |
| Class of Worker | NP |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Housewife |
| Township / Ward | Newark City |
| Est. Birth Year | ~1907 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Crawford | Daughter | — | 4 | ~1936 |
| Georgiana Chauncey | Daughter | — | 16 | ~1924 |
| Mary Chauncey | Daughter | — | 13 | ~1927 |
| Esther Chauncey | Daughter | — | 20 | ~1920 |
| Willie Crawford | Daughter | — | 3 | ~1937 |
| Elaine Chauncey | Daughter | — | 3 | ~1937 |
| Head Chauncey | Head | — | 48 | ~1892 |
| Eugene Crawford | Son | — | 9 | ~1931 |
| William Chauncey | Son | — | 10 | ~1930 |
| Albert Chauncey | Son | — | 22 | ~1918 |
| Milton Crawford | Son | — | 4 | ~1936 |
| Joseph Chauncey | Son | — | 8 | ~1932 |
| Mary Crawford | Spouse | — | 33 | ~1907 |
Census Appearances
1930
Essex, New …
Other, age 23
Essex, New Jersey · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | Mary |
| Relationship to Head | Servant |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Housework |
| Industry | Home |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Essex-County, New …
Spouse, age 33
Essex-County, New Jersey · implied b. ~1907 — 13 household members
| Surname | Crawford |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 33 |
| Marital Status | Widowed |
| Birthplace | New Jersey |
| 1935 Residence (City) | Newark city |
| 1935 Residence (County) | Essex |
| Occupation | Housewife |
| Class of Worker | NP |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 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 Crawford across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Crawford
Spouse · 1940 · age 33 · b. ~1907 · New Jersey
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Essex-County, New Jersey
Open full size
1940 US Federal Census — Essex-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02420-00004)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Justice Clayton | 34 | Head | Cement Mixer | Georgia |
| 2 | Mary S. Clayton | 20 | Wife | — | Georgia |
| 3 | Jessie Clayton | 4 | Son | — | New Jersey |
| 4 | Willie Clayton | 3 | Son | — | New Jersey |
| 5 | Dorothy Clayton | 2 | Daughter | — | New Jersey |
| 6 | Sarah Parker | 29 | Head | General Housework | Georgia |
| 7 | Rosalie Bailey | 39 | Sister | Toy Maker | Georgia |
| 8 | Tassie Mitchell | 40 | Wife | Floor Worker | Alabama |
| 9 | Head Chauncey | 48 | Head | Laborer | Alabama |
| 10 | Albert Chauncey | 22 | Son | Painter | New Jersey |
| 11 | Esther Chauncey | 20 | Daughter | Maid | New Jersey |
| 12 | Georgiana Chauncey | 16 | Daughter | — | New Jersey |
| 13 | Mary L. Chauncey | 13 | Daughter | — | New Jersey |
| 14 | William Chauncey | 10 | Son | — | New Jersey |
| 15 | Joseph Chauncey | 8 | Son | — | New Jersey |
| 16 | Elaine Chauncey | 3 | Daughter | — | New Jersey |
| 17 | Mary Crawford THIS PERSON | 33 | Wife | Housewife | New Jersey |
| 18 | Eugene Crawford | 9 | Son | — | New Jersey |
| 19 | Milton Crawford | 4 | Son | — | New Jersey |
| 20 | Evelyn Crawford | 4 | Daughter | — | New Jersey |
| 21 | Willie Mae Crawford | 3 | Daughter | — | New Jersey |
| 22 | Fred Applegate | 43 | Head | Laborer | New Jersey |
| 23 | Mattie Applegate | 48 | Wife | Laundress | New Jersey |
| 24 | Willie M. Barnett | 39 | Wife | Maid | So Carolina |
| 25 | Henry Barnett | 47 | Head | Laborer | Georgia |
| 27 | Alexander Vorus | 56 | Head | Grocery Store | Hungary |
| 28 | Mary Vorus | 54 | Wife | Saleswoman | Hungary |
| 29 | Louise Mount | 50 | Mother | — | New Jersey |
| 30 | James F. Mount | 25 | Head | Receiving Clerk | New Jersey |
| 31 | Lenore Mount | 23 | Sister | Typist | New Jersey |
| 32 | Shirley Mount | 17 | Sister | Bench Worker | New Jersey |
| 33 | Marlene Mount | 5 | Neice | — | New Jersey |
| 34 | Kate Wegner | 60 | Head | — | Maryland |
| 35 | Nicholas Kozloff | 46 | Head | Bartender | Poland |
| 36 | Anna Kozloff | 38 | Wife | — | Austria |
| 37 | Sonia Kozloff | 15 | Daughter | — | New Jersey |
| 38 | John Zarrachy | 67 | Father in law | — | Austria |
| 39 | Carolina Zarrachy | 64 | Mother in law | — | Austria |
| 40 | Harriett O'Toole | 36 | Wife | — | New Jersey |
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)