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Mary Brady — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this Mary Brady across the 1920, 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1869), then head of a 4-person household.
Age 71
b. ~1869
Female
Head
Born: Ireland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Brady |
| Given Name | Mary J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1869 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Brashan | Daughter | — | 41 | ~1899 |
| Mary Brady | Head | — | 71 | ~1869 |
| Edward Buckley | Other | — | 44 | ~1896 |
| Charles Petting | Other | — | 70 | ~1870 |
Census Appearances
Spouse, age 44
Mercer, New Jersey · implied b. ~1876 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brady |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1888 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | ireland |
1930
Mercer, New …
Spouse, age 58
Mercer, New Jersey · implied b. ~1872 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brady |
| Given Name | Mary J |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1887 |
| Age at First Marriage | 26 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Watchman |
| Industry | Rail road |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Mercer-County, New …
Head, age 71
Mercer-County, New Jersey · implied b. ~1869 — 4 household members
| Surname | Brady |
| Given Name | Mary J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Brady 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 Brady
Head · 1940 · age 71 · b. ~1869 · 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-t0627-02435-00127)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ethel Dollinger | 45 | Head | — | New York |
| 42 | Kenneth Dollinger | 11 | Son | — | New Jersey |
| 43 | Joseph Dollinger | 24 | Son | Sales | New York |
| 44 | Billie Ross | 22 | Son | Kitchen Helper | New Jersey |
| 45 | Delores Comregulo | 20 | Lodger | — | New Jersey |
| 46 | George Clark | 49 | Lodger | — | New Jersey |
| 47 | George Miller | 60 | Head | — | New Jersey |
| 48 | Grace Miller | 59 | Wife | — | New Jersey |
| 49 | July Oyster | 40 | Head | — | New Jersey |
| 50 | Helen Oyster | 30 | Wife | — | New Jersey |
| 51 | Carol Oyster | 3 | Daughter | — | New Jersey |
| 52 | Elizabeth Apeldorn | 70 | Head | — | Maryland |
| 53 | William Apeldorn | 40 | Son | Engineer | New Jersey |
| 54 | Betty Heller | 31 | Lodger | Housekeeper | New Jersey |
| 55 | Henry Kohler | 68 | Head | — | Pennsylvania |
| 56 | Stella Kohler | 58 | Wife | Clerk | Pennsylvania |
| 57 | William Lang | 20 | Lodger | — | New Jersey |
| 58 | Frances Sauer | 46 | Maid | Housekeeper | Pennsylvania |
| 59 | Milton H. P. Haigh | 50 | Head | Executive | New Jersey |
| 60 | Margaret Haigh | 48 | Wife | — | New Jersey |
| 61 | Josephine Haigh | 73 | Mother | — | New Jersey |
| 62 | Mary J. Kite | 73 | Mother-in-law | — | New Jersey |
| 63 | Alice Minner | 30 | Lodger | Buyer Of Dresses | Pennsylvania |
| 64 | Thomas A. Lorenzo | 44 | Head | Artist & Photo Colorist | New Jersey |
| 65 | Elizabeth Lorenzo | 47 | Wife | — | Pennsylvania |
| 66 | Estelle S. Hennicke | 25 | Daughter | — | New Jersey |
| 67 | Sarah Hessert | 64 | Head | — | New Jersey |
| 68 | Helen M. Hessert | 35 | Niece | Clerk File | New Jersey |
| 69 | Mary J. Brady THIS PERSON | 71 | Head | — | Ireland |
| 70 | Margaret Brashan | 41 | Daughter | — | New Jersey |
| 71 | Charles Petting | 70 | Lodger | — | New Jersey |
| 72 | Edward Buckley | 44 | Lodger | — | New Jersey |
| 73 | Thomas Morris | 55 | Head | Reamer | New Jersey |
| 74 | Helen C. Morris | 51 | Daughter | — | New Jersey |
| 75 | Ellen C. Kelly | 72 | Head | — | New Jersey |
| 76 | Esther H. Shelley | 66 | Head | — | England |
| 77 | Mary Jane Foley | 76 | Head | Typist | New Jersey |
| 78 | Harry Dawson | 48 | Head | Sales Investigator | New Jersey |
| 79 | Anna Dawson | 35 | Wife | Bookkeeper | New Jersey |
| 80 | Suzanne Dawson | 7 | Daughter | — | New Jersey |
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)