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John Murphy — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this John Murphy across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents James & James — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Murphy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Plumber |
| Industry | Plumbing |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 400 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Plumber |
| Township / Ward | Cincinnati |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| James Murphy | Head | — | 58 | ~1882 |
| Robert Murphy | Son | — | 19 | ~1921 |
| Richard Murphy | Son | — | 16 | ~1924 |
| John Murphy | Son | — | 23 | ~1917 |
| Edna Murphy | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Hamilton, Ohio
Son, age 3
Hamilton, Ohio · implied b. ~1917 — 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 | 3 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Germany |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Son, age 13
Hamilton, Ohio · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Son, age 23
Hamilton-County, Ohio · implied b. ~1917 — 5 household members
| Surname | Murphy |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Occupation | Plumber |
| Industry | Plumbing |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 400 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 2 locations, using XGBoost record linkage. Identified parents: father James Murphy (~0.92 confidence) and father James Murphy (~0.92 confidence) and mother Edna Murphy (~0.92 confidence) and mother Edna Murphy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Murphy
b. ~1883
Source father
● Household
· direct · ~0.92
Father
James Murphy
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Edna Murphy
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Edna Murphy
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Murphy
Son · 1940 · age 23 · b. ~1917 · Ohio
★ You are viewing this record
Sibling
Richard Murphy
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Murphy
Sibling · 1940 · age 19
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 — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03196-00474)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ursula Fossler | 48 | Wife | — | Ohio |
| 2 | Frederick Fossler | 74 | Father | — | Ohio |
| 3 | James H. Frances | 50 | Head | Store Keeper | Tennessee |
| 4 | Annie Frances | 48 | Wife | — | Tennessee |
| 5 | Imogene Frances | 24 | Daughter | — | Tennessee |
| 6 | Tolbert Francis | 27 | Head | Patrolman | Tennessee |
| 7 | Edith Francis | 24 | Wife | — | Indiana |
| 8 | Mary Alice Francis | 5 | Daughter | — | Ohio |
| 9 | James J. Murphy | 58 | Head | Compositor | Ohio |
| 10 | Edna Murphy | 56 | Wife | — | Pennsylvania |
| 11 | John Murphy THIS PERSON | 23 | Son | Plumber | Ohio |
| 12 | Robert Murphy | 19 | Son | Printer | Ohio |
| 13 | Richard Murphy | 16 | Son | — | Ohio |
| 14 | Ida Cooper | 39 | Head | — | Ohio |
| 15 | Jean R. Cooper | 13 | Daughter | — | Ohio |
| 16 | Frank Stecher | 73 | Father | — | Germany |
| 17 | Carl Stecher | 35 | Brother | Ice Cream Maker | Ohio |
| 18 | Annabel Kees | 50 | Head | Factory Worker | Kentucky |
| 19 | James Maher | 62 | Head | Motorman | Ireland |
| 20 | Ella Maher | 62 | Wife | — | Ohio |
| 21 | Robert Goth | 14 | Grandson | — | Ohio |
| 22 | William L. Richards | 21 | Head | Private Secretary | Ohio |
| 23 | Hazel Richards | 21 | Wife | Presser | Ohio |
| 24 | Frank Thorne | 50 | Head | Sheet Worker | Ohio |
| 25 | Julia Thorne | 49 | Wife | — | Kentucky |
| 26 | Louise Thorne | 22 | Daughter | Box Maker | Ohio |
| 27 | Raymond Thorne | 20 | Son | Service Man | Ohio |
| 28 | Eugene Hombrink | 29 | Head | Machinist | Ohio |
| 29 | Gertrude Hombrink | 31 | Wife | — | Ohio |
| 30 | Richard E. Hombrink | 3 | Son | — | Ohio |
| 31 | Ray Mchaffie | 51 | Head | Salesman | Indiana |
| 32 | Mamie Mchaffie | 49 | Wife | — | Ohio |
| 33 | Ray Jr. Mchaffie | 25 | Son | Cashier | Ohio |
| 34 | John Hackel | 65 | Head | Machinist | Germany |
| 35 | Minnie Hackel | 66 | Wife | — | Ohio |
| 36 | Joseph H. Kamphaus | 50 | Head | Laborer | Ohio |
| 37 | Alma B. Kamphaus | 49 | Wife | — | Ohio |
| 38 | Thomas Brennan | 26 | Head | Salesman | Ohio |
| 39 | Catherine Brennan | 63 | Mother | — | Ohio |
| 40 | John O'Hara | 69 | Head | Steam Fitter | New York |
Pedigree Summary
John + 2 siblings
Gen 1 · 4 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)