JM
John Mcgrath — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Kings, New York
Our Model Tree links this John Mcgrath across the 1910, 1920 and 1930 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 3-person household.
Age 50
b. ~1880
Male
Head
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Kings, 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 | 1889 |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Night Supt. |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 55 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Night Supt. |
| Township / Ward | New York City Brooklyn |
| 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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Catherine Mcgrath | Daughter | — | 22 | ~1908 |
| John Mcgrath | Head | — | 50 | ~1880 |
| Catherine Mcgrath | Other | — | 45 | ~1885 |
Census Appearances
1910
Queens, New …
Head, age 31
Queens, New York · implied b. ~1879 — 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 | 31 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 13 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Painter |
| Industry | House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Kings, New …
Head, age 42
Kings, New York · implied b. ~1878 — 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 | 42 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1893 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Watchman |
| Industry | Building |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | ireland |
1930
Kings, New …
Head, age 50
Kings, New York · implied b. ~1880 — 3 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 | 1889 |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Night Supt. |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 55 |
| 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 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mcgrath
Head · 1930 · age 50 · b. ~1880 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Kings, New York
Open full size
1930 US Federal Census — Kings, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1514:1074)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John G. Hennelly | 39 | Head | Physician | New York |
| 2 | Alice M. Hennelly | 39 | Wife-H | — | Canada-English |
| 3 | John G. Jr. Hennelly | 3 | Son | — | New York |
| 4 | Mary R. Hennelly | 0 | Daughter | — | New York |
| 5 | Neil Sanders | 29 | Roomer | Groom | Minnesota |
| 6 | Agnes L. Sanders | 20 | Roomer | — | Montana |
| 7 | Samuel D. Brooks | 46 | Roomer | Jobber | New York |
| 8 | John J. Healy | 64 | Head | Printer | Ireland |
| 9 | Delia A. Healy | 59 | Wife-H | — | Ireland |
| 10 | Geo. H. Andresen | 32 | Head | Editor | New York |
| 11 | Mary E. Andresen | 29 | Wife-H | — | New York |
| 12 | Mary E. Andresen | 0 | Daughter | — | New York |
| 13 | John E. Mooney | 37 | Head | Electrician | New York |
| 14 | Elizabeth Mooney | 36 | Wife-H | — | New York |
| 15 | John M. Mooney | 10 | Son | — | New York |
| 16 | Gloria K. Mooney | 0 | Daughter | — | New York |
| 17 | Winifred Evers | 70 | Mother-L | — | Ireland |
| 18 | Herbert Shotwell | 65 | Head | — | New York |
| 19 | Margaret Tabor | 23 | Niece | Librarian | Pennsylvania |
| 20 | Geo. E. Weston | 68 | Head | Salesman | England |
| 21 | Katherine Weston | 65 | Wife-H | — | Germany |
| 22 | Gladys M. Weston | 35 | Daughter | Teacher | New York |
| 23 | Catherine Fitzgerald | 55 | Head | — | New Jersey |
| 24 | Rose Riley | 53 | Sister | Examiner | New Jersey |
| 25 | Elizabeth Riley | 55 | Sister | Saleswoman | New Jersey |
| 26 | Anthony Blass | 43 | Head | Manager | Italy |
| 27 | Mary Blass | 44 | Wife-H | — | New York |
| 28 | Josephine Blass | 20 | Daughter | Instructor | New York |
| 29 | Gerard Blass | 19 | Son | Stenographer | New York |
| 30 | Marion Blass | 16 | Daughter | — | New York |
| 31 | Melvin Blass | 9 | Son | — | New York |
| 32 | Eliza Derrify | 68 | Mother-L | — | Ireland |
| 33 | Walter Meehan | 25 | Head | Chauffeur | New York |
| 34 | Frances Meehan | 24 | Wife-H | — | New York |
| 35 | Virginia Meehan | 1 | Daughter | — | New York |
| 36 | Martin Sherman | 50 | Head | Guard | Ireland |
| 37 | Margaret Sherman | 52 | Wife-H | — | New York |
| 38 | Katherine Sherman | 28 | Niece | Office Asst. | New York |
| 39 | Hipolito Fernandez | 42 | Roomer | Dish Washer | Philippine Is. |
| 40 | Max Rabinowitz | 60 | Head | — | Russia |
| 41 | Sarah Rabinowitz | 54 | Wife-H | — | Russia |
| 42 | Jacob Rabinowitz | 25 | Son | Manager | Russia |
| 43 | Harry Berkowitz | 50 | Head | Manager | Romania |
| 44 | Sophie Berkowitz | 46 | Wife-H | Office Asst. | Romania |
| 45 | Moe Berkowitz | 20 | Son | — | New York |
| 46 | Edith Berkowitz | 17 | Daughter | — | New York |
| 47 | Dorothy Berkowitz | 10 | Daughter | — | New York |
| 48 | John Mcgrath THIS PERSON | 50 | Head | Night Supt. | Ireland |
| 49 | Catherine Mcgrath | 45 | Wife-H | — | Ireland |
| 50 | Catherine Mcgrath | 22 | Daughter | Bookkeeper | 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)