DM
David Murphy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this David Murphy across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1882), then head of a 6-person household.
Age 58
b. ~1882
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Murphy |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Pumper |
| Industry | Oil Refinery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1100 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Pumper |
| Est. Birth Year | ~1882 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Sara Murphy | Daughter | — | 15 | ~1925 |
| Mary Murphy | Spouse | — | 55 | ~1885 |
| David Murphy | Head | — | 58 | ~1882 |
| David Murphy | Son | — | 22 | ~1918 |
| Margaret Murphy | Daughter | — | 17 | ~1923 |
| John Murphy | Son | — | 30 | ~1910 |
Census Appearances
1930
Philadelphia, Pennsylvania
Other, age 48
Philadelphia, Pennsylvania · implied b. ~1882 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Daniel J |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1884 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Manager |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Philadelphia-County, Pennsylvania
Head, age 58
Philadelphia-County, Pennsylvania · implied b. ~1882 — 6 household members
| Surname | Murphy |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Phila |
| Naturalization Status | Naturalized |
| Occupation | Pumper |
| Industry | Oil Refinery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1100 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| 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 David Murphy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
David Murphy
Head · 1940 · age 58 · b. ~1882 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03730-00384)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Joseph Ehnow | 7 | Son | — | Penna |
| 42 | August Gueringer | 46 | Head | Truck Driver | Penna |
| 43 | Anna Gueringer | 44 | Wife | — | Penna |
| 44 | August Gueringer | 14 | Son | — | Penna |
| 45 | Anna Gueringer | 12 | Daughter | — | Penna |
| 46 | Albert Gueringer | 8 | Son | — | Penna |
| 47 | Albert Garnet | 33 | Lodger | Sticker | Penna |
| 48 | Carman Gambale | 27 | Head | Tailor | Penna |
| 49 | Mary Gambale | 21 | Wife | Female | Penna |
| 50 | William J. Leonard | 39 | Head | Shipper | Penna |
| 51 | Teresa Leonard | 36 | Wife | — | Penna |
| 52 | William Leonard | 11 | Son | — | Penna |
| 53 | Theresa Leonard | 10 | Daughter | — | Penna |
| 54 | Catherine Leonard | 8 | Daughter | — | Penna |
| 55 | Rose Mary Leonard | 7 | Daughter | — | Penna |
| 56 | Joseph Leonard | 3 | Son | — | Penna |
| 57 | Thomas Leonard | 2 | Son | — | Penna |
| 58 | David Murphy THIS PERSON | 58 | Head | Pumper | Ireland |
| 59 | Mary Murphy | 55 | Wife | — | Ireland |
| 60 | John Murphy | 30 | Son | Elevator Operator | Penna |
| 61 | David Murphy | 22 | Son | Laborer | Penna |
| 62 | Margaret Murphy | 17 | Daughter | — | Penna |
| 63 | Sara Murphy | 15 | Daughter | — | Penna |
| 64 | Helen Lawler | 41 | Head | — | Penna |
| 65 | Harry Lawler | 18 | Son | Bookbinder | Penna |
| 66 | John Lawler | 17 | Son | — | Penna |
| 67 | Edward Lawler | 5 | Son | — | Penna |
| 68 | Daniel Stinger | 45 | Head | Inspector | Penna |
| 69 | Catherine Stinger | 45 | Wife | — | Penna |
| 70 | Frank J. Brennan | 45 | Head | Bricklayer | Penna |
| 71 | Ellen Brennan | 40 | Wife | — | Penna |
| 72 | Helen Brennan | 12 | Daughter | — | Penna |
| 73 | Jane Brennan | 10 | Daughter | — | Penna |
| 74 | Frances Brennan | 5 | Daughter | — | Penna |
| 75 | Frank Brennan | 3 | Son | — | Penna |
| 76 | Joseph Steelman | 34 | Head | Truck Driver | Penna |
| 77 | Frances Steelman | 31 | Wife | — | Penna |
| 78 | Rita Steelman | 2 | Daughter | — | Penna |
| 79 | Hugh Mulrenny | 60 | Head | Stationary Fireman | Ireland |
| 80 | Margaret Mulrenny | 60 | Wife | — | Ireland |
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)