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John Murphy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Essex, New Jersey
Our Model Tree links this John Murphy across the 1900, 1910, 1920 and 1930 US Censuses in Essex, New Jersey (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1900), then head of a 5-person household.
Age 30
b. ~1900
Male
Head
Born: New Jersey
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Essex, New Jersey |
| Surname | Murphy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 19 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 27 |
| Veteran | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Newark City |
| Est. Birth Year | ~1900 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Helen Murphy | Daughter | — | 3 | ~1927 |
| John Murphy | Head | — | 30 | ~1900 |
| Mary Murphy | Other | — | 68 | ~1862 |
| John Murphy | Son | — | 6 | ~1924 |
| Helen Murphy | Spouse | — | 29 | ~1901 |
Census Appearances
1900
Essex, New …
Son, age 1
Essex, New Jersey · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Birth Month | Aug |
| Birth Year | 1899 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1910
Essex, New …
Son, age 10
Essex, New Jersey · implied b. ~1900 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1920
Essex, New …
Son, age 20
Essex, New Jersey · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Messenger Boy |
| Industry | Post Office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Essex, New …
Head, age 30
Essex, New Jersey · implied b. ~1900 — 5 household members
| Surname | Murphy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 19 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 27 |
| Veteran | No |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 4 US Census years (1900, 1910, 1920 and 1930) in Essex, New Jersey, using XGBoost record linkage. Identified parents: father John Murphy (~0.92 confidence) and father John Murphy (~0.92 confidence) and mother Bridget Murphy (~0.92 confidence) and mother Margaret Murphy (~0.92 confidence) and mother Bridget Murphy (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Murphy
b. ~1868
Source father
● Household
· direct · ~0.92
Father
John Murphy
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Bridget Murphy
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Margaret Murphy
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Bridget Murphy
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Murphy
Head · 1930 · age 30 · b. ~1900 · New Jersey
★ 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 — Essex, New Jersey
Open full size
1930 US Federal Census — Essex, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1341:0266)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Isadore Alajion | 30 | Head | None | New York |
| 2 | Caroline Alajion | 30 | Wife | None | New Jersey |
| 3 | Robert Alajion | 14 | Son | Servant | New Jersey |
| 4 | Laura Alajion | 11 | Daughter | None | New Jersey |
| 5 | Alfred Alajion | 4 | Son | None | New Jersey |
| 6 | Florence Alajion | 4 | Daughter | None | New Jersey |
| 7 | Zezzall Alajion | 2 | Daughter | None | New Jersey |
| 8 | Carrie Manta | 58 | Mother-in-law | None | New Jersey |
| 9 | Isabella Castello | 41 | Head | Laborer | Brazil |
| 10 | Lola Castello | 41 | Wife | None | Brazil |
| 11 | John Castello | 21 | Son | None | Illinois |
| 12 | Louis Castello | 18 | Son | Coppersmith | Connecticut |
| 13 | Adela Castello | 17 | Daughter | None | Illinois |
| 14 | Antoni Jaworska | 37 | Head | None | Poland |
| 15 | Wanda Jaworska | 13 | Daughter | Cook | New Jersey |
| 16 | Florence Jaworska | 10 | Daughter | None | New Jersey |
| 17 | Bernard Jaworska | 8 | Son | None | New Jersey |
| 18 | Alice Jaworska | 6 | Daughter | None | New Jersey |
| 19 | Boleslaw Murawski | 37 | Head | None | Poland |
| 20 | Sophie Murawski | 12 | Daughter | Servant | New Jersey |
| 21 | Joseph Murawski | 10 | Son | None | New Jersey |
| 22 | Veronica Murawski | 8 | Daughter | None | New Jersey |
| 23 | Alexandria Murawski | 5 | Daughter | None | New Jersey |
| 24 | Albert Benford | 52 | Head | None | Poland |
| 25 | Helen Benford | 40 | Wife | Tailor | Poland |
| 26 | Michael Benford | 13 | Son | None | New Jersey |
| 27 | Jennie Benford | 11 | Daughter | None | New Jersey |
| 28 | Irene Benford | 5 | Daughter | None | New Jersey |
| 29 | John Grzegohaza | 44 | Head | None | Poland |
| 30 | Sophie Grzegohaza | 42 | Wife | Laborer | Poland |
| 31 | Frank Grzegohaza | 19 | Son | None | New Jersey |
| 32 | Mary Grzegohaza | 9 | Daughter | Clerk | New Jersey |
| 33 | Albie Grzegohaza | 6 | Son | None | New Jersey |
| 34 | Edward Grzegohaza | 3 | Son | None | New Jersey |
| 35 | Peter Polczynski | 36 | Head | None | Poland |
| 36 | Nellie Polczynski | 32 | Wife | Butcher | Poland |
| 37 | Irene Polczynski | 12 | Daughter | None | New Jersey |
| 38 | John Polczynski | 9 | Son | None | New Jersey |
| 39 | Frank Kearney | 56 | Head | None | New Jersey |
| 40 | Elizabeth Kearney | 50 | Wife | Cutter | New Jersey |
| 41 | Mildred Kearney | 10 | Daughter | None | New Jersey |
| 42 | James Sundy | 24 | Head | None | New Jersey |
| 43 | Helen Sundy | 22 | Wife | Driver | New Jersey |
| 44 | Edna Sundy | 2 | Daughter | None | New Jersey |
| 45 | John Murphy THIS PERSON | 30 | Head | None | New Jersey |
| 46 | Helen Murphy | 29 | Wife | Driver | Czechoslovakia |
| 47 | John Murphy | 6 | Son | Operator | New Jersey |
| 48 | Helen Murphy | 3 | Daughter | None | New Jersey |
| 49 | Mary Murphy | 68 | Mother | None | Ireland |
| 50 | — | 37 | Head | Polisher | Poland |
Pedigree Summary
John
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 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)