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John Mcgrath — 1930 US Census Record
Linked across censuses1930 United States Federal Census · New York, New York
Our Model Tree links this John Mcgrath across the 1910, 1920 and 1930 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 6-person household.
Age 50
b. ~1880
Male
Head
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | New York, New York |
| Surname | McGrath |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Salesman |
| Industry | Dept store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Salesman |
| Township / Ward | Manhattan Borough |
| Est. Birth Year | ~1880 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Mcgrath | Head | — | 50 | ~1880 |
| John Mcgrath | Son | — | 23 | ~1907 |
| John Mcgrath | Son | — | 17 | ~1913 |
| John Mcgrath | Son | — | 21 | ~1909 |
| John Mcgrath | Son | — | 19 | ~1911 |
| John Mcgrath | Son | — | 15 | ~1915 |
Census Appearances
1910
New York, …
Head, age 29
New York, New York · implied b. ~1881 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 3 |
| Year of Immigration | 1902 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stableman |
| Industry | Stable |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
New York, …
Head, age 40
New York, New York · implied b. ~1880 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1900 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Stableman |
| Industry | Laborer |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
New York, …
Head, age 50
New York, New York · implied b. ~1880 — 6 household members
| Surname | McGrath |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Salesman |
| Industry | Dept store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Radio Set | R |
| Veteran | No |
| 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 John Mcgrath across 3 US Census years (1910, 1920 and 1930) in New York, New York, using XGBoost record linkage.
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This person
Anchor record
John Mcgrath
Head · 1930 · age 50 · b. ~1880 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — New York, New York
Open full size
1930 US Federal Census — New York, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1548:0360)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Peter James | 36 | Head | Porter | Ireland |
| 2 | Margaret James | 32 | Wife | Housework | Ireland |
| 3 | Peter Jr James | 11 | Son | — | New York |
| 4 | Frederick James | 8 | Son | — | New York |
| 5 | Frank Lutz | 41 | Head | Waiter | Germany |
| 6 | Mary Lutz | 37 | Wife | Clerk | Germany |
| 7 | Frank Lutz | 16 | Son | Houseboy | New York |
| 8 | John Lutz | 13 | Son | Errand Boy | New York |
| 9 | Dorothy Lutz | 8 | Daughter | — | New York |
| 10 | James Mcgrath | 40 | Head | Salesman | New York |
| 11 | Elizabeth Mcgrath | 38 | Wife | Housework | New York |
| 12 | Elizabeth Mcgrath | 18 | Daughter | Stenog | New York |
| 13 | James Mcgrath | 16 | Son | Telephone Operator | New York |
| 14 | John Mcgrath | 14 | Son | Messenger | New York |
| 15 | Thomas Mcgrath | 10 | Son | — | New York |
| 16 | William Lutz | 41 | Head | Cutter | Germany |
| 17 | Anna Lutz | 40 | Wife | Housework | Germany |
| 18 | William Lutz | 20 | Son | Salesman | New York |
| 19 | Anna Lutz | 17 | Daughter | Salesclerk | New York |
| 20 | John Lutz | 13 | Son | — | New York |
| 21 | Anna Buttner | 51 | Head | Cleaner | Germany |
| 22 | George Buttner | 21 | Head | — | Scotland |
| 23 | Alice Buttner | 68 | Wife | Housework | Ireland |
| 24 | James Buttner | 29 | Son | Clerk | New York |
| 25 | Alice Buttner | 30 | Daughter | Housework | New York |
| 26 | John Buttner | 28 | Head | Clerk | New York |
| 27 | Mary Buttner | 8 | Son | — | New York |
| 28 | James Buttner | 7 | Son | — | New York |
| 29 | George Buttner | 5 | Son | — | New York |
| 30 | Michael Mcdermott | 54 | Head | Truck Driver | New York |
| 31 | Joseph Mcdermott | 51 | Brother | Messenger | New York |
| 32 | John Mcdermott | 47 | Brother | Messenger | New York |
| 33 | John Thompson | 62 | Head | Inspector | New York |
| 34 | Elizabeth Thompson | 58 | Wife | Housework | New York |
| 35 | John Mcgrath | 35 | Head | Clerk | Ireland |
| 36 | Margaret Mcgrath | 33 | Wife | Housework | Ireland |
| 37 | Pauline Mcgrath | 12 | Wife | Housework | New York |
| 38 | Margaret Mcgrath | 10 | Daughter | Stenog | New York |
| 39 | Agnes Mcgrath | 8 | Daughter | — | New York |
| 40 | John Mcgrath THIS PERSON | 50 | Head | Salesman | Ireland |
| 41 | John Mcgrath | 23 | Son | Bookkeeper | New York |
| 42 | John Mcgrath | 21 | Son | Salesman | New York |
| 43 | John Mcgrath | 19 | Son | Salesman | New York |
| 44 | John Mcgrath | 17 | Son | Clerk | New York |
| 45 | John Mcgrath | 15 | Son | Clerk | New York |
| 46 | William Cleary | 45 | Head | Pressman | New York |
| 47 | John Cleary | 15 | Son | Salesman | New York |
| 48 | James Cleary | 13 | Son | — | New York |
| 49 | Peter Cleary | 11 | Son | — | New York |
| 50 | Mary Cleary | 8 | Daughter | — | New York |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)