MG
Mary Grace — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, New Jersey
Our Model Tree links this Mary Grace across the 1930 and 1940 US Censuses in Essex-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 5-person household.
Age 53
b. ~1887
Female
Spouse
Born: Irish Free State
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, New Jersey |
| Surname | Grace |
| Given Name | Mary K |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Naturalization Status | Alien |
| Additional Details | |
| Highest Grade | H 1 |
| 1935 Residence | New Jersey |
| Birthplace (normalized) | irish free state |
| Township / Ward | Newark |
| Est. Birth Year | ~1887 |
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 |
|---|---|---|---|---|
| Stanley Grace | Son | — | 18 | ~1922 |
| Walter Grace | Son | — | 23 | ~1917 |
| Stanley Grace | Head | — | 49 | ~1891 |
| Catherine Grace | Daughter | — | 22 | ~1918 |
| Mary Grace | Spouse | — | 53 | ~1887 |
Census Appearances
1930
Bronx, New …
Other, age 42
Bronx, New York · implied b. ~1888 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grace |
| Given Name | Mary |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | launderer |
| Industry | Protectory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | irish free state |
1940
Essex-County, New …
Spouse, age 53
Essex-County, New Jersey · implied b. ~1887 — 5 household members
| Surname | Grace |
| Given Name | Mary K |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Newark |
| 1935 Residence (County) | Essex |
| Naturalization Status | Alien |
| Highest Grade | H 1 |
| 1935 Residence | New Jersey |
| Birthplace (normalized) | irish free state |
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 Grace across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Grace
Spouse · 1940 · age 53 · b. ~1887 · 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
40 people indexed on this census page (nara:1940:m-t0627-02334-00689)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leonard Gonger | 30 | Head | Clerk | New Jersey |
| 2 | Gertrude Gonger | 28 | Wife | — | New York |
| 3 | Joan Gonger | 2 | Daughter | — | New Jersey |
| 4 | Stanley Grace | 49 | Head | Janitor | Canada English |
| 5 | Mary K Grace THIS PERSON | 53 | Wife | — | Irish Free State |
| 6 | Walter Grace | 23 | Son | Machine Hand | New Jersey |
| 7 | Catherine Grace | 22 | Daughter | Saleslady | New Jersey |
| 8 | Stanley Jr Grace | 18 | Son | — | New Jersey |
| 9 | Sol Pitman | 36 | Head | Agent | Russia |
| 10 | Pearl Pitman | 34 | Wife | — | New Jersey |
| 11 | Joel Pitman | 3 | Son | — | New Jersey |
| 12 | Nathan Roppaport | 33 | Head | Cleaning & Dyeing | New York |
| 13 | Fae Roppaport | 31 | Wife | — | New Jersey |
| 14 | Iris Roppaport | 6 | Daughter | — | New York |
| 15 | Martin Roppaport | 5 | Son | — | New Jersey |
| 16 | Benjamin Goldberg | 31 | Head | Pharmacist | Russia |
| 17 | Fae Goldberg | 23 | Wife | — | Massachusetts |
| 18 | Benjamin Edelstein | 50 | Head | Carpenter | Lithuania |
| 19 | Lillie Edelstein | 54 | Wife | — | Lithuania |
| 20 | Rhoda Cherman | 23 | Cousin | — | Lithuania |
| 21 | Morris Einzig | 24 | Head | Automotive | New York |
| 22 | Helen Einzig | 21 | Wife | — | New York |
| 23 | Harriet Einzig | 1 | Daughter | — | New Jersey |
| 24 | Helen Bortnicker | 35 | Head | — | New Jersey |
| 25 | Myron Bortnicker | 17 | Son | — | New Jersey |
| 26 | Burton Bortnicker | 12 | Son | — | New Jersey |
| 27 | Ealine Bortnicker | 12 | Daughter | — | New Jersey |
| 28 | Samuel Goldenburg | 38 | Head | Salesman | Massachusetts |
| 29 | Shirley Goldenburg | 37 | Wife | — | New York |
| 30 | Howard Goldenburg | 9 | Son | — | New Jersey |
| 31 | Allen Goldenburg | 1 | Son | — | New Jersey |
| 32 | Joseph Rabindovitz | 32 | Head | Mechanic | Ohio |
| 33 | Rose Rabindovitz | 37 | Wife | — | Russia |
| 34 | Esther Rabindovitz | 5 | Daughter | — | New Jersey |
| 35 | Bernard Levy | 32 | Head | Lawyer | New Jersey |
| 36 | Roselynn Levy | 30 | Wife | — | New Jersey |
| 37 | Carlisle Linnie | 39 | Head | Salesman | New Jersey |
| 38 | Blanche Linnie | 37 | Wife | — | New Jersey |
| 39 | Sherwin Linnie | 12 | Son | — | New Jersey |
| 40 | Yetta Hermann | 61 | Mother | — | Germany |
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)