TM
Thomas Mcgrath — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this Thomas Mcgrath across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed), with identified parents James & Thomas — first a son (b.~1914), then head of a 5-person household.
Age 26
b. ~1914
Male
Son
Born: New York
Separated
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | McGrath |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Separated |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Additional Details | |
| Highest Grade | No |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York City |
| Est. Birth Year | ~1914 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| James Mcgrath | Head | — | 59 | ~1881 |
| Thomas Mcgrath | Son | — | 26 | ~1914 |
| Rose Mcgrath | Daughter | — | 14 | ~1926 |
| Elizabeth Mcgrath | Spouse | — | 55 | ~1885 |
| Charles Mcgrath | Son | — | 18 | ~1922 |
Census Appearances
1920
Bronx, New …
Son, age 7
Bronx, New York · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Thomas J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read | Yes |
| Can Write | No |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Bronx, New …
Son, age 17
Bronx, New York · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Thomas J Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Office Boy |
| Industry | American Cylinder |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Bronx-County, New …
Son, age 26
Bronx-County, New York · implied b. ~1914 — 5 household members
| Surname | McGrath |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Separated |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Bronx |
| Highest Grade | No |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Thomas Mcgrath across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Mcgrath (~0.92 confidence) and father Thomas Mcgrath (~0.92 confidence) and mother Elizabeth Mcgrath (~0.92 confidence) and mother Emma Mcgrath (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Mcgrath
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Thomas Mcgrath
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Mcgrath
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Emma Mcgrath
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mcgrath
Son · 1940 · age 26 · b. ~1914 · New York
★ You are viewing this record
Sibling
Charles Mcgrath
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Mcgrath
Sibling · 1940 · age 14
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 — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02496-00193)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Maria Borchardt | 38 | Wife | — | Germany |
| 42 | Heinz Borchardt | 6 | Son | — | Germany |
| 43 | Henry Beckmann | 64 | Head | Painter | New York |
| 44 | Martha Beckmann | 59 | Wife | Housekeeper | New York |
| 45 | Minnie Vogel | 80 | Roomer | — | Germany |
| 46 | Eliza Fitzpatrick | 74 | Roomer | — | New York |
| 47 | Rose Collins | 33 | Roomer | Typist | New York |
| 48 | J Samuel Ross | 38 | Roomer | Salesman | New York |
| 49 | Catherine Roch | 60 | Roomer | Audit Clerk | New York |
| 50 | Collonoda Gallo | 64 | Head | — | Italy |
| 51 | Carlo Gallo | 76 | Husband | — | Italy |
| 52 | Millie Leonardo | 34 | Daughter | — | Italy |
| 53 | Andrew Leonardo | 30 | Son in law | Cook | Italy |
| 54 | William Gallo | 37 | Head | Proprietor | Italy |
| 55 | Mildred Gallo | 31 | Wife | — | Italy |
| 56 | Carlo Gallo | 1 | Son | — | New York |
| 57 | E Grace Halsey | 59 | Head | — | New York |
| 58 | E Sarah Ridgway | 74 | Cousin | — | New York |
| 59 | H Walter Halsey | 61 | Brother | Asst Cashier | New York |
| 60 | Edna R Halsey | 57 | Wife | — | New York |
| 61 | Anna Mcnamee | 64 | Head | — | New York |
| 62 | Mae Mcnamee | 26 | Daughter | Stenographer | New York |
| 63 | Margaret Coleman | 58 | Head | Proprietor | Ireland |
| 64 | Thomas Coleman | 38 | Son | Longshoreman | New York |
| 65 | Frank Callahan | 30 | Boarder | Clerk | New York |
| 66 | Michael Kelly | 30 | Boarder | Clerk | Ireland |
| 67 | Cornelius Crimmins | 33 | Boarder | Houseman | Ireland |
| 68 | Harry Mcgill | 28 | Boarder | Night Houseman | Ireland |
| 69 | Edward Patti | 28 | Boarder | Salesman | Ireland |
| 70 | John Small | 19 | Boarder | — | New York |
| 71 | Neville Small | 14 | Boarder | — | New York |
| 72 | Joseph Brennan | 38 | Boarder | Salesman | New York |
| 73 | Theresa Just | 70 | Boarder | Maid | Czechoslovakia |
| 74 | James Mcgrath | 59 | Head | Plumber | New York |
| 75 | Elizabeth Mcgrath | 55 | Husband | — | New York |
| 76 | Thomas Mcgrath THIS PERSON | 26 | Son | — | New York |
| 77 | Charles Mcgrath | 18 | Son | — | New York |
| 78 | Rose Mcgrath | 14 | Daughter | — | New York |
| 79 | Theodore Burden | 37 | Head | Salesman | New York |
| 80 | Margaret Burden | 34 | Wife | — | New York |
Pedigree Summary
Thomas + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)