JM
James Mcgrath — 1940 US Census Record
Model Tree available1940 United States Federal Census · New-York-County, New York
Our Model Tree links this James Mcgrath across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed), with identified parents Edward & Frank — first a son (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Male
Son
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | McGrath |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Additional Details | |
| Occupation | Former |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 5 |
| Income (1939) | 1000 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Former |
| Township / Ward | New York |
| Est. Birth Year | ~1906 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Ida Mcgrath | Daughter | — | 40 | ~1900 |
| Ernest Woods | Head | — | 59 | ~1881 |
| Joseph Mcgrath | Son | — | 3 | ~1937 |
| James Mcgrath | Son | — | 34 | ~1906 |
| James Mcgrath | Son | — | 9 | ~1931 |
Census Appearances
1920
Kings, New …
Son, age 13
Kings, New York · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Son, age 23
Kings, New York · implied b. ~1907 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGrath |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 20 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Laborer |
| Industry | Ink Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Son, age 34
New-York-County, New York · implied b. ~1906 — 5 household members
| Surname | McGrath |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Occupation | Former |
| Industry | Construction |
| Class of Worker | PW |
| Hours Worked | 5 |
| Income (1939) | 1000 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 James Mcgrath across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Mcgrath (~0.92 confidence) and father Frank Mcgrath (~0.92 confidence) and father Ernest Woods (~0.92 confidence) and mother Sarah Mcgrath (~0.92 confidence) and mother Ellen Mcgrath (~0.60 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.86
Father
Edward Mcgrath
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Frank Mcgrath
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Ernest Woods
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Sarah Mcgrath
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Ellen Mcgrath
b. ~1897
Source mother
● Household
· direct · ~0.6
This person
Anchor record
James Mcgrath
Son · 1940 · age 34 · b. ~1906 · New York
★ You are viewing this record
Sibling
Joseph Mcgrath
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcgrath
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ida Mcgrath
Sibling · 1940 · age 40
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 — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02640-00850)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Theresa | 15 | daughter | — | New York |
| 42 | Joseph | 13 | son | — | New York |
| 43 | John | 10 | son | — | New York |
| 44 | John Roppa | 44 | head | — | Italy |
| 45 | Leo Smith | 66 | head | Owner | Kentucky |
| 46 | Beatrice Smith | 56 | wife | Electrician | New Jersey |
| 47 | Elizabeth Mcelin | 65 | head | — | New York |
| 48 | Sadie Alexander | 70 | lodger | — | New York |
| 49 | Gustave Omazzalie | 51 | head | Painter | New York |
| 50 | Rose Omazzalie | 25 | wife | Janitress | New York |
| 51 | Rose Omazzalie | 1 | daughter | — | New York |
| 52 | Walter Gardner | 32 | head | Baker | Vermont |
| 53 | Margaret Gardner | 24 | wife | — | New York |
| 54 | Walter Gardner | 2 | son | — | New York |
| 55 | David Gardner | 1 | son | — | New York |
| 56 | Charles Parr | 47 | head | — | New York |
| 57 | Helen Parr | 49 | wife | Chauffeur | New York |
| 58 | Robert Parr | 18 | son | — | New York |
| 59 | Mary Parr | 13 | daughter | Bell Boy | New York |
| 60 | Helen Parr | 9 | daughter | — | New York |
| 61 | Anthony Fierro | 40 | head | Timekeeper | New York |
| 62 | June Fierro | 39 | wife | — | Pennsylvania |
| 63 | Grace Billman | 43 | lodger | — | Pennsylvania |
| 64 | Edward Clancy | 40 | lodger | Counterman | New York |
| 65 | Geo Storkenberg | 35 | lodger | Helper | New York |
| 66 | Henry Elmendorf | 58 | head | — | New York |
| 67 | Mary Elmendorf | 54 | wife | — | New York |
| 68 | Robert Elmendorf | 15 | son | — | New York |
| 69 | Florence Elmendorf | 11 | daughter | — | New York |
| 70 | Elizabeth Elmendorf | 10 | daughter | — | New York |
| 71 | William Elmendorf | 4 | son | — | New York |
| 72 | Henry Weber | 37 | head | — | New York |
| 73 | Eileen Weber | 27 | wife | Manager | New York |
| 74 | Anthony Weber | 2 | son | — | New York |
| 75 | Margaret Weber | 1 | daughter | — | New York |
| 76 | Ernest Woods | 59 | head | — | New York |
| 77 | James Mcgrath THIS PERSON | 34 | son | Former | New York |
| 78 | Ida Mcgrath | 40 | daughter | — | Ireland |
| 79 | James Mcgrath | 9 | son | — | New York |
| 80 | Joseph Mcgrath | 3 | son | Mover | New York |
Pedigree Summary
James + 3 siblings
Gen 1 · 5 parents
~0.86
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)