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Mary Bullock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this Mary Bullock across the 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 8-person household.
Age 22
b. ~1918
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Bullock |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Lawrenceville |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | Child's nurse |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 350 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Child'S Nurse |
| Township / Ward | Lawrenceville |
| Est. Birth Year | ~1918 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Bullock | Daughter | — | 9 | ~1931 |
| Mary Bullock | Spouse | — | 50 | ~1890 |
| Mary Bullock | Daughter | — | 22 | ~1918 |
| Walter Bullock | Son | — | 26 | ~1914 |
| Laura Bullock | Head | — | 60 | ~1880 |
| Mabel Bullock | Daughter | — | 12 | ~1928 |
| Hubert Bullock | Son | — | 14 | ~1926 |
| Rosalie Bullock | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Mercer, New …
Daughter, age 12
Mercer, New Jersey · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bullock |
| Given Name | Mary E |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Virginia |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Mercer-County, New …
Daughter, age 22
Mercer-County, New Jersey · implied b. ~1918 — 8 household members
| Surname | Bullock |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Lawrenceville |
| 1935 Residence (County) | Mercer |
| Occupation | Child's nurse |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 350 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Bullock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Bullock
Daughter · 1940 · age 22 · b. ~1918 · New Jersey
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Sibling
Hubert Bullock
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Bullock
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Bullock
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosalie Bullock
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mabel Bullock
Sibling · 1940 · age 12
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 — Mercer-County, New Jersey
Open full size
1940 US Federal Census — Mercer-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02357-00293)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Howard Davis | 20 | Son | Labour | New Jersey |
| 42 | Richard Crutchfield | 50 | Head | — | Virginia |
| 43 | Wilford Jr. Crutchfield | 13 | Son | — | New Jersey |
| 44 | Ulysses Smitherman | 39 | Lodger | House Man | N. Carolina |
| 45 | Mary Smitherman | 30 | Lodger | Domestic | N. Carolina |
| 46 | Laura Bullock | 60 | Head | Labour | North Carolina |
| 47 | Mary Bullock | 50 | Wife | — | Virginia |
| 48 | Walter Bullock | 26 | Son | Labour | New Jersey |
| 49 | Mary Bullock THIS PERSON | 22 | Daughter | Child'S Nurse | New Jersey |
| 50 | Rosalie Bullock | 15 | Daughter | — | New Jersey |
| 51 | Hubert Bullock | 14 | Son | — | New Jersey |
| 52 | Mabel Bullock | 12 | Daughter | — | New Jersey |
| 53 | Evelyn Bullock | 9 | Daughter | — | New Jersey |
| 54 | John Bright | 53 | Head | Labour | Maryland |
| 55 | Berkeley Bright | 22 | Son | Gardner | New Jersey |
| 56 | John Holmes | 49 | Head | Chef | Virginia |
| 57 | Katherine Holmes | 44 | Wife | Cook | Virginia |
| 58 | Rylan Holmes | 23 | Son | General Labour | Virginia |
| 59 | William Holmes | 22 | Son | Cook | New Jersey |
| 60 | Margaret Holmes | 18 | Daughter | Child'S Nurse | New Jersey |
| 61 | Dorothy Holmes | 17 | Daughter | — | New Jersey |
| 62 | John Jr. Holmes | 15 | Son | — | New Jersey |
| 63 | Katherine Holmes | 12 | Daughter | — | New Jersey |
| 64 | Henry S. Chester | 48 | Head | Truck Driver | Maryland |
| 65 | Ellen R. Chester | 47 | Wife | — | Pennsylvania |
| 66 | Elizabeth Chester | 19 | Daughter | — | New Jersey |
| 67 | Edward Chester | 17 | Son | — | New Jersey |
| 68 | Calvin Chester | 15 | Son | — | New Jersey |
| 69 | Marion Chester | 12 | Daughter | — | New Jersey |
| 70 | Alfred Chester | 10 | Son | — | New Jersey |
| 71 | Geraldine Chester | 5 | Daughter | — | New Jersey |
| 72 | June Chester | 5 | Daughter | — | New Jersey |
| 73 | Arthur B. Maxwell | 35 | Head | Cook | North Carolina |
| 74 | Connie Maxwell | 31 | Wife | Maid | North Carolina |
| 75 | Clarence Maxwell | 12 | Son | — | North Carolina |
| 76 | Henry Maxwell | 11 | Son | — | New Jersey |
| 77 | James Maxwell | 7 | Son | — | New Jersey |
| 78 | Rosa Redmon | 29 | Sister-in-law | — | North Carolina |
| 79 | Annie Redmon | 26 | Sister-in-law | Cook | North Carolina |
| 80 | Robert Waggoner | 44 | Head | Waiter | Georgia |
Related Census Records
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)