MG
Mary Gregory — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this Mary Gregory across the 1920, 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 5-person household.
Age 52
b. ~1888
Female
Spouse
Born: Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Gregory |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Princeton Borough |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Princeton Borough |
| Est. Birth Year | ~1888 |
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 |
|---|---|---|---|---|
| Daisy Gregory | Daughter | — | 27 | ~1913 |
| Jerry Gregory | Head | — | 56 | ~1884 |
| Ada Gregory | Other | — | 6 | ~1934 |
| George Nelson | Other | — | 57 | ~1883 |
| Mary Gregory | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Mercer, New …
Spouse, age 34
Mercer, New Jersey · implied b. ~1886 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gregory |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Mercer, New …
Spouse, age 42
Mercer, New Jersey · implied b. ~1888 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gregory |
| Given Name | Mary S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 22 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Chamber Maid |
| Industry | Office Building |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Mercer-County, New …
Spouse, age 52
Mercer-County, New Jersey · implied b. ~1888 — 5 household members
| Surname | Gregory |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Princeton Borough |
| 1935 Residence (County) | Mercer |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| 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 Gregory 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 Gregory
Spouse · 1940 · age 52 · b. ~1888 · 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 — 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-t0627-02357-00603)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Earl Mitrand | 65 | Boarder | — | New Jersey |
| 42 | Grace S. Hoagland | 38 | Head | Housekeeper | New Jersey |
| 43 | Grace S. Hoagland | 17 | Daughter | Housekeeper | New Jersey |
| 44 | Sarah Hoagland | 15 | Daughter | — | New Jersey |
| 45 | Harvey Hoagland | 11 | Son | — | New Jersey |
| 46 | Leo Hoagland | 8 | Son | — | New Jersey |
| 47 | George Wright | 50 | Head | Painter | Georgia |
| 48 | Mary Redding | 65 | Head | — | New York |
| 49 | Blanche Collins | 45 | Head | Housekeeper | New Jersey |
| 50 | Alonzo Collins | 24 | Son | Helper At Warehouse | New York |
| 51 | Stanley Collins | 20 | Son | Dishwasher | New York |
| 52 | William Collins | 25 | Son | Musician | New York |
| 53 | Kay Collins | 21 | Daughter-in-law | — | New Jersey |
| 54 | William Collins | 1 | Grandson | — | New Jersey |
| 55 | Jerry Gregory | 56 | Head | Laborer | North Carolina |
| 56 | Mary Gregory THIS PERSON | 52 | Wife | — | Virginia |
| 57 | Daisy Gregory | 27 | Daughter | Housekeeper | New Jersey |
| 58 | Ada Gregory | 6 | Granddaughter | — | New Jersey |
| 59 | George Nelson | 57 | Lodger | Waiter | Maryland |
| 60 | Willie Gordon | 78 | Head | — | Virginia |
| 61 | George Johnson | 76 | Lodger | — | Virginia |
| 62 | John Fletcher | 48 | Head | Butler | Virginia |
| 63 | Ardell Fletcher | 40 | Wife | Housekeeper | New Jersey |
| 64 | Katherine Fletcher | 23 | Daughter | School Teacher | New Jersey |
| 65 | William F. Hall | 52 | Head | General Houseman | Maryland |
| 66 | Ethel D. Hall | 55 | Wife | Laundress | New Jersey |
| 67 | Katherine Hall | 25 | Daughter | — | New Jersey |
| 68 | William Jr. Hall | 23 | Son | Seamstress | New Jersey |
| 69 | George Hall | 19 | Son | — | New Jersey |
| 70 | Robert G. Hall | 18 | Son | — | New Jersey |
| 71 | Barbara A. Hall | 15 | Daughter | — | New Jersey |
| 72 | Margaret E. Hall | 12 | Daughter | — | New Jersey |
| 73 | Mary E. Hall | 12 | Daughter | — | New Jersey |
| 74 | Francis B. Hall | 8 | Son | — | New Jersey |
| 75 | Richard G. Hall | 2 | Son | — | New Jersey |
| 76 | Valentino Ranallo | 55 | Head | Lunch Room Keeper | Italy |
| 77 | Maria Ranallo | 55 | Wife | — | Italy |
| 78 | Joseph Ranallo | 20 | Son | Sales Clerk | New Jersey |
| 79 | Carmen Ranallo | 18 | Son | Helper On Truck | New Jersey |
| 80 | Valentino Jr. Ranallo | 17 | Son | Bowling Alley Pin-Boy | 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)