TM
Thomas Mcgrath — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Thomas Mcgrath across the 1910, 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents Mary — first a head (b.~1870), then head of a 4-person household.
Age 70
b. ~1870
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | McGrath |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Bklyn |
| Additional Details | |
| Occupation | Retired |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Retired |
| Township / Ward | New York |
| Est. Birth Year | ~1870 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Albert Mcgrath | Other | — | 20 | ~1920 |
| Mary Buckley | Other | — | 55 | ~1885 |
| James Mcgrath | Son | — | 48 | ~1892 |
| Thomas Mcgrath | Head | — | 70 | ~1870 |
Census Appearances
1910
New York, …
Son, age 40
New York, New York · implied b. ~1870 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Labour |
| Industry | Livery Stable |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1920
New York, …
Head, age 50
New York, New York · implied b. ~1870 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Steamship |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
New York, …
Head, age 60
New York, New York · implied b. ~1870 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | Thomas |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Runner |
| Industry | Wall St |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Head, age 70
Kings-County, New York · implied b. ~1870 — 4 household members
| Surname | McGrath |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Bklyn |
| Occupation | Retired |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | New York |
| 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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Mcgrath (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Mcgrath
b. ~1848
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Mcgrath
Head · 1940 · age 70 · b. ~1870 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02580-00706)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Rynders | 53 | Head | Cutter | Bklyn |
| 2 | Gordon Rynders | 23 | Son | Operator | Bklyn |
| 3 | Edward Miles | 64 | Head | Retired | England |
| 4 | Mary Miles | 58 | Wife | — | Bklyn |
| 5 | William Miles | 26 | Son | Clerk | Bklyn |
| 6 | Thomas J. Mcgrath THIS PERSON | 70 | Head | Retired | New York |
| 7 | James F. Mcgrath | 48 | Son | Manager | New York |
| 8 | Albert J. Mcgrath | 20 | Nephew | Clerk | New York |
| 9 | Mary J. Buckley | 55 | Sister-in-law | — | New York |
| 10 | John Poddenburg | 62 | Head | Printer | Holland |
| 11 | Hester Poddenburg | 65 | Wife | — | Bklyn |
| 12 | George Poddenburg | 24 | Son | Clerk | Bklyn |
| 13 | Lawrence Ingersen | 58 | Head | Janitor | Denmark |
| 14 | Edith Ingersen | 46 | Wife | — | Denmark |
| 15 | Leif Ingersen | 8 | Son | — | Bklyn |
| 16 | Victor Jeffersen | 43 | Roomer | Floor Master | Denmark |
| 17 | Ira Isaacs | 64 | Head | Operator | Russia |
| 18 | Anna Isaacs | 60 | Wife | — | Russia |
| 19 | Jacob Isaacs | 24 | Son | Operator | Bklyn |
| 20 | John P. Lyons | 62 | Head | Retired | New York |
| 21 | Anna Lyons | 27 | Daughter | Clerk | Bklyn |
| 22 | Julia Lyons | 25 | Daughter | Clerk | Bklyn |
| 23 | Julia Millidonis | 45 | Head | Chief Operat. | Bklyn |
| 24 | Alice Millidonis | 45 | Sister | — | Bklyn |
| 25 | Joseph Brody | 44 | Head | Salesman | New York |
| 26 | Anna Brody | 37 | Wife | — | Bklyn |
| 27 | Harold Brody | 16 | Son | — | Bklyn |
| 28 | Melvin Brody | 11 | Son | — | Bklyn |
| 29 | Herman Brase | 51 | Head | Waiter | Mass |
| 30 | Mary Brase | 40 | Wife | — | Mass |
| 31 | Otto Laine | 67 | Boarder | — | Russia |
| 32 | Solomon Klime | 34 | Head | Candy Importer | Poland |
| 33 | Regina Klime | 34 | Wife | — | Poland |
| 34 | Fred Klime | 7 | Son | — | Bklyn |
| 35 | Jeanette Klime | 5 | Daughter | — | Bklyn |
| 36 | George Klime | 2 | Son | — | Bklyn |
| 37 | Patrick Conway | 55 | Head | Carpenter | New York |
| 38 | Mary Conway | 50 | Sister | — | New York |
| 39 | Nicholas Hunt | 35 | Head | Agent | Free State Ireland |
| 40 | Ford Phadrin Hunt | 33 | Nephew | Motorman | Free State Ireland |
Pedigree Summary
Thomas
Gen 1 · 1 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)