MM
Mary Murphy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Mary Murphy across the 1920, 1930 and 1940 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents James & Anna — first a daughter (b.~1900), then head of a 4-person household.
Age 30
b. ~1900
Female
Daughter
Born: Penna
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Murphy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | New Jersey |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
| Township / Ward | Philadelphia |
| 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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Murphy | Daughter | — | 30 | ~1900 |
| James Murphy | Head | — | 62 | ~1868 |
| Albert Murphy | Son | — | 25 | ~1905 |
| Anna Murphy | Spouse | — | 60 | ~1870 |
Census Appearances
1920
Philadelphia, Pennsylvania
Daughter, age 20
Philadelphia, Pennsylvania · implied b. ~1900 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Mary G |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | Ireland |
| Occupation | Stenographer |
| Industry | Boiler W |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1930
Philadelphia, Pennsylvania
Daughter, age 30
Philadelphia, Pennsylvania · implied b. ~1900 — 4 household members
| Surname | Murphy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Penna |
| Father's Birthplace | Penna |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
1940
Philadelphia-County, Pennsylvania
Other, age 40
Philadelphia-County, Pennsylvania · implied b. ~1900 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Margaret |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Penna. |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Bookkeeper |
| Industry | Dept. Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 210 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | penna |
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 Mary 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 mother Anna Murphy (~0.92 confidence) and mother Marguerite Murphy (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Murphy
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Anna Murphy
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Marguerite Murphy
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Murphy
Daughter · 1930 · age 30 · b. ~1900 · Pennsylvania
★ You are viewing this record
Sibling
Albert Murphy
Sibling · 1930 · age 25
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
1930 US Federal Census — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2142:0196)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Norah O'Donnell | 55 | Head | Proprietor | Irish Free State |
| 52 | Annie Geary | 60 | Lodger | — | Irish Free State |
| 53 | James Bond | 62 | Lodger | Domestic | Scotland |
| 54 | — | None | — | — | — |
| 55 | — | None | — | — | — |
| 56 | — | None | — | — | — |
| 57 | — | None | — | — | — |
| 58 | — | None | — | — | — |
| 59 | — | None | — | — | — |
| 60 | Catherine Mccasey | 62 | Head | — | Northern Ireland |
| 61 | Mary Mccasey | 38 | Daughter | Clerk | Pennsylvania |
| 62 | Cassie Mccasey | 36 | Daughter | — | Pennsylvania |
| 63 | Raymond Mccasey | 29 | Son | Roofer | Pennsylvania |
| 64 | Mary Powell | 73 | Head | — | Delaware |
| 65 | Ida Forney | 55 | Lodger | Embroiderer | Delaware |
| 66 | Jesse Pine | 51 | Head | — | Pennsylvania |
| 67 | Harry Pine | 20 | Son | Engraver | Pennsylvania |
| 68 | Howard Pine | 17 | Son | Clerk | Pennsylvania |
| 69 | Robert Shaw | 32 | Head | Machinist | Pennsylvania |
| 70 | Mildred Shaw | 27 | Wife | — | Pennsylvania |
| 71 | Charles Lang | 61 | Head | Pharmacist | Pennsylvania |
| 72 | Rodney N. Lang | 45 | Wife | — | Pennsylvania |
| 73 | Jane R. Lang | 19 | Son | — | Pennsylvania |
| 74 | Caroline M. Lang | 17 | Daughter | Stenographer | Pennsylvania |
| 75 | John J. Mccullough | 71 | Head | Carrier | Pennsylvania |
| 76 | Mary Mccullough | 71 | Wife | — | Pennsylvania |
| 77 | Francis Mccullough | 32 | Son | Manager | Pennsylvania |
| 78 | Mary Gallagher | 60 | Head | — | Irish Free State |
| 79 | James Murphy | 62 | Head | — | Penna |
| 80 | Anna Murphy | 60 | Wife | — | New Jersey |
| 81 | Mary Murphy THIS PERSON | 30 | Daughter | — | Penna |
| 82 | Albert Murphy | 25 | Son | Mechanic | Penna |
| 83 | Francis P. Kean | 35 | Head | Foreman | Northern Ireland |
| 84 | Annie M. Kean | 35 | Wife | — | Northern Ireland |
| 85 | John Kean | 17 | Son | Shipping Clerk | Pennsylvania |
| 86 | Annie Kean | 16 | Daughter | Sorter | Pennsylvania |
| 87 | Catherine Kean | 15 | Daughter | — | Pennsylvania |
| 88 | Francis Kean | 11 | Son | — | Pennsylvania |
| 89 | Joseph Kean | 8 | Son | — | Pennsylvania |
| 90 | James Kean | 13 | Nephew | — | Pennsylvania |
| 91 | William Thomson | 29 | Head | Finisher | Pennsylvania |
| 92 | Catherine Thomson | 29 | Wife | — | Pennsylvania |
| 93 | William Thomson | 4 | Son | — | Pennsylvania |
| 94 | James Thomson | 3 | Son | — | Pennsylvania |
| 95 | Robert Thomson | 1 | Son | — | Pennsylvania |
| 96 | Nicholas Powers | 40 | Head | Crane Operator | Irish Free State |
| 97 | Catherine Powers | 45 | Wife | — | New Jersey |
| 98 | Elizabeth Powers | 15 | Daughter | — | Pennsylvania |
| 99 | Nicholas Powers | 13 | Son | — | Pennsylvania |
| 100 | William Vanderveer | 47 | Head | Laborer | Pennsylvania |
Pedigree Summary
Mary + 1 sibling
Gen 1 · 3 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)