MS
Mary Saunders — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this Mary Saunders across the 1920, 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 3-person household.
Age 67
b. ~1873
Female
Head
Born: Virginia
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Saunders |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Virginia |
| 1935 Residence (City) | Union Twp |
| 1935 Residence (County) | Union |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Union Twp |
| Est. Birth Year | ~1873 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mattie Jason | Other | — | 70 | ~1870 |
| Mary Saunders | Head | — | 67 | ~1873 |
| James Saunders | Son | — | 47 | ~1893 |
Census Appearances
1920
Union, New …
Head, age 50
Union, New Jersey · implied b. ~1870 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Saunders |
| Given Name | Mary E. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Housework |
| Industry | At Home |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Union, New …
Head, age 60
Union, New Jersey · implied b. ~1870
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | SAUNDERS |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 60 |
| Marital Status | Widowed |
| Birthplace | Virginia |
| Age at First Marriage | 14 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Union-County, New …
Head, age 67
Union-County, New Jersey · implied b. ~1873 — 3 household members
| Surname | Saunders |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | Black |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Virginia |
| 1935 Residence (City) | Union Twp |
| 1935 Residence (County) | Union |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Saunders across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Saunders
Head · 1940 · age 67 · b. ~1873 · 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 — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-02390-00251)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clara Perry | 43 | Head | Housekeeper | North Carolina |
| 2 | James Perry | 16 | Son | — | North Carolina |
| 3 | Adell Perry | 15 | Daughter | — | North Carolina |
| 4 | Benjamin Perry | 13 | Son | — | North Carolina |
| 5 | Wilson Perry | 11 | Son | — | North Carolina |
| 6 | James Gore | 46 | Head | Chauffeur | South Carolina |
| 7 | Mattie Gore | 51 | Wife | Housekeeper | Virginia |
| 8 | Doris Gore | 21 | Daughter | Housekeeper | New Jersey |
| 9 | Sara Grandy | 70 | Mother-in-law | — | N. Carolina |
| 10 | Elliot Johnson | 54 | Head | Laborer | New Jersey |
| 11 | Eula Johnson | 42 | Wife | — | North Carolina |
| 12 | Albert Ayres | 64 | Head | — | New Jersey |
| 13 | Lena Ayres | 51 | Wife | — | New Jersey |
| 14 | Warren Ayres | 38 | Son | Driver | New Jersey |
| 15 | Martha Jones | 61 | Head | Taken Care Of By State | Virginia |
| 16 | Mary Saunders THIS PERSON | 67 | Head | — | Virginia |
| 17 | James Saunders | 47 | Son | Chauffeur | Virginia |
| 18 | Mattie Jason | 70 | Lodger | — | Georgia |
| 19 | Louis Mila | 43 | Head | — | New Jersey |
| 20 | Michele Mila | 23 | Son | Mechanic | New Jersey |
| 21 | Edna Mila | 20 | Daughter | Sales Clerk | New Jersey |
| 22 | Katherine Becket | 19 | Lodger | Waitress | New Jersey |
| 23 | Elmer Binder | 36 | Head | Brick Layer | New Jersey |
| 24 | Edith Binder | 30 | Wife | — | New Jersey |
| 25 | May Binder | 4 | Daughter | — | New Jersey |
| 26 | Theodore Postal | 47 | Head | Housekeeper | New York |
| 27 | Jane Postal | 23 | Wife | Operator | New Jersey |
| 28 | Helen Postal | 20 | Daughter | Salesgirl | New Jersey |
| 29 | Theodore Postal | 13 | Son | — | New Jersey |
| 30 | Eleven Postal | 8 | Daughter | — | New Jersey |
| 31 | Molly White | 40 | Head | Housekeeper | North Carolina |
| 32 | Olivia White | 20 | Daughter | Housekeeper | South Carolina |
| 33 | Kenneth Davis | 45 | Lodger | Laborer | New Jersey |
| 34 | Louis Spruill | 30 | Head | Driver | North Carolina |
| 35 | Lucille Spruill | 20 | Wife | — | Virginia |
| 36 | Jane Taylor | 39 | Head | Housekeeper | Pennsylvania |
| 37 | Roswell Humphries | 30 | Lodger | Housekeeper | North Carolina |
| 38 | Henry Humphries | 32 | Lodger | Butler | North Carolina |
| 39 | Robert Fayton | 11 | Son | — | 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)