JM
John Murphy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Kings-County, New York
Our Model Tree links this John Murphy across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Murphy |
| Given Name | John J Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn Borough |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | machine operator |
| Industry | steamship co |
| Class of Worker | PW |
| Hours Worked | 47 |
| Income (1939) | 180 |
| Highest Grade | H 2 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Machine Operator |
| Township / Ward | Brooklyn Borough |
| Est. Birth Year | ~1920 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Murphy | Head | — | 42 | ~1898 |
| John Murphy | Son | — | 20 | ~1920 |
| Edward Murphy | Son | — | 9 | ~1931 |
| George Murphy | Son | — | 17 | ~1923 |
| Marie Murphy | Spouse | — | 39 | ~1901 |
Census Appearances
1920
New York, …
Son, age 1
New York, New York · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | John J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Son, age 12
Kings, New York · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | John J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 20
Kings-County, New York · implied b. ~1920 — 5 household members
| Surname | Murphy |
| Given Name | John J Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn Borough |
| 1935 Residence (County) | Kings |
| Occupation | machine operator |
| Industry | steamship co |
| Class of Worker | PW |
| Hours Worked | 47 |
| Income (1939) | 180 |
| Highest Grade | H 2 |
| 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 John Murphy across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father John Murphy (~0.92 confidence) and father John Murphy (~0.92 confidence) and father John Murphy (~0.92 confidence) and mother Marie Murphy (~0.92 confidence) and mother Marion Murphy (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Murphy
b. ~1883
Source father
● Household
· direct · ~0.92
Father
John Murphy
b. ~1895
Source father
● Household
· direct · ~0.92
Father
John Murphy
b. ~1898
Source father
● Household
· direct · ~0.92
Mother
Marie Murphy
b. ~1901
Source mother
● Household
· direct · ~0.92
Mother
Marion Murphy
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Murphy
Son · 1940 · age 20 · b. ~1920 · New York
★ You are viewing this record
Sibling
George Murphy
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Murphy
Sibling · 1940 · age 9
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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-02574-00715)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Alice F Maccrystal | 40 | Sister | School Teacher | New York |
| 42 | Daniel J Reilly | 61 | Head | Retired Police Officer | New York |
| 43 | Sarah H Reilly | 45 | Wife | — | New York |
| 44 | Martin Knoll | 47 | Head | Truck Driver | New York |
| 45 | Martin Kenney | 52 | Cousin | Playground Director | New York |
| 46 | Abigail O'Toole | 67 | Head | — | New York |
| 47 | Josephine Carroll | 55 | Niece | Supervisor | New York |
| 48 | Berthold S Meyer | 46 | Head | General Clerk | New Jersey |
| 49 | Augusta V Meyer | 46 | Wife | — | New York |
| 50 | Berthold S Meyer | 20 | Son | Messenger | New York |
| 51 | Edward F Meyer | 19 | Son | Clerk | New York |
| 52 | Christina Barnhart | 73 | Head | — | New York |
| 53 | Edward Leary | 48 | Head | Credit Manager | New York |
| 54 | Helen Leary | 47 | Wife | — | New York |
| 55 | Eileen Leary | 14 | Daughter | — | New York |
| 56 | Edward Leary | 10 | Son | — | New York |
| 57 | Marion Leary | 9 | Daughter | — | New York |
| 58 | Joseph Bryan | 27 | Head | Shipfitter | Pennsylvania |
| 59 | Mary Bryan | 50 | Mother | — | Pennsylvania |
| 60 | Arthur Jackson | 48 | Boarder | Painter | New York |
| 61 | Andrew Andersen | 28 | Head | Accounting Clerk | New York |
| 62 | Anna Andersen | 27 | Wife | — | Pennsylvania |
| 63 | Robert Farley | 40 | Head | Condenser Agent | New York |
| 64 | Theresa Farley | 37 | Wife | — | New York |
| 65 | Robert R Farley | 3 | Son | — | New York |
| 66 | John J Murphy | 42 | Head | Salesman | New York |
| 67 | Marie Murphy | 39 | Wife | — | New York |
| 68 | John J Jr Murphy THIS PERSON | 20 | Son | Machine Operator | New York |
| 69 | George Murphy | 17 | Son | — | New York |
| 70 | Edward Murphy | 9 | Son | — | New York |
| 71 | Carl Nelson | 69 | Head | Machinist | Sweden |
| 72 | Irene S Nelson | 69 | Wife | — | Sweden |
| 73 | John Cannon | 36 | Head | Clerk | New York |
| 74 | Mary Cannon | 32 | Wife | — | New York |
| 75 | Barbara J Cannon | 7 | Daughter | — | New York |
Pedigree Summary
John + 2 siblings
Gen 1 · 5 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)