DM
Dorothy Murphy — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Dorothy Murphy across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents Bertha & Mary — first a daughter (b.~1911), then head of a 6-person household.
Age 19
b. ~1911
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Murphy |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Twister |
| Industry | Woolen Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Twister |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1911 |
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 1930 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Bertha Murphy | Head | — | 59 | ~1871 |
| Helen Murphy | Other | — | 22 | ~1908 |
| Helen Murphy | Other | — | 1 | ~1929 |
| Dorothy Murphy | Daughter | — | 19 | ~1911 |
| William Murphy | Son | — | 24 | ~1906 |
| Paul Calder | Son | — | 33 | ~1897 |
Census Appearances
1910
Philadelphia, Pennsylvania
Daughter, age 1
Philadelphia, Pennsylvania · implied b. ~1909 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Philadelphia, Pennsylvania
Daughter, age 10
Philadelphia, Pennsylvania · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murphy |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Daughter, age 19
Philadelphia, Pennsylvania · implied b. ~1911 — 6 household members
| Surname | Murphy |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Twister |
| Industry | Woolen Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Dorothy Murphy across 3 US Census years (1910, 1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage. Identified parents: mother Bertha Murphy (~0.92 confidence) and mother Mary Murphy (~0.92 confidence) and father Michael Murphy (~0.92 confidence) and mother Ella Murphy (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Bertha Murphy
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Mary Murphy
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Michael Murphy
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Ella Murphy
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Murphy
Daughter · 1930 · age 19 · b. ~1911 · Pennsylvania
★ You are viewing this record
Sibling
Paul Calder
Sibling · 1930 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Murphy
Sibling · 1930 · age 24
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:fifteenthcensus00reel2103:0290)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Jacob Stanczak | 46 | Head | Iron Worker | Poland |
| 52 | Sophie Stanczak | 45 | Wife | — | Poland |
| 53 | William Stanczak | 17 | Son | Packer | Pennsylvania |
| 54 | Laura Stanczak | 16 | Daughter | Packer | Pennsylvania |
| 55 | Stephen Stanczak | 12 | Son | — | Pennsylvania |
| 56 | Mary Stanczak | 7 | Daughter | — | Pennsylvania |
| 57 | Bertha Stanczak | 4 | Daughter | — | Pennsylvania |
| 58 | Peter Bzoinski | 38 | Head | Weaver | Poland (Russia) |
| 59 | Julia Bzoinski | 32 | Wife | — | Poland (Russia) |
| 60 | Stanley Bzoinski | 14 | Son | — | Pennsylvania |
| 61 | Jennie Bzoinski | 12 | Daughter | — | Pennsylvania |
| 62 | Stella Bzoinski | 7 | Daughter | — | Pennsylvania |
| 63 | Matthew Bzoinski | 3 | Son | — | Pennsylvania |
| 64 | John Carlin | 42 | Head | Tin-Roofer | Pennsylvania |
| 65 | Maria Carlin | 38 | Wife | — | Pennsylvania |
| 66 | William Carlin | 10 | Son | — | Pennsylvania |
| 67 | Madeline Carlin | 10 | Daughter | — | Pennsylvania |
| 68 | John Carlin | 8 | Son | — | Pennsylvania |
| 69 | Joseph Carlin | 7 | Son | — | Pennsylvania |
| 70 | Rita Wheeler | 18 | Step-Daughter | — | Pennsylvania |
| 71 | Catherine Wheeler | 16 | Step-Daughter | House-Maid | Pennsylvania |
| 72 | Dorothy Wheeler | 12 | Step-Daughter | — | Pennsylvania |
| 73 | James Hane | 46 | Head | Carder | Pennsylvania |
| 74 | Mary Hane | 46 | Wife | — | Pennsylvania |
| 75 | Eugene Hane | 15 | Son | — | Pennsylvania |
| 76 | Albert Ward | 16 | Nephew | — | Pennsylvania |
| 77 | Thomas Miller | 75 | Father-in-law | — | Pennsylvania |
| 78 | Frank Wojtkiewicz | 46 | Head | Baker | Poland |
| 79 | Sophie Wojtkiewicz | 45 | Wife | — | Poland |
| 80 | Ralph Wojtkiewicz | 21 | Son | — | Pennsylvania |
| 81 | Cecelia Wojtkiewicz | 19 | Daughter | Packer | Pennsylvania |
| 82 | John Wojtkiewicz | 17 | Son | Cook'S Packer | Pennsylvania |
| 83 | Marie Wojtkiewicz | 14 | Daughter | — | Pennsylvania |
| 84 | Josepha Levicki | 55 | Mother-in-law | — | Poland |
| 85 | Bertha Murphy | 59 | Head | — | Pennsylvania |
| 86 | Paul Calder | 33 | Son | Painter | Pennsylvania |
| 87 | Dorothy Murphy THIS PERSON | 19 | Daughter | Twister | Pennsylvania |
| 88 | William Murphy | 24 | Son | Packer | Pennsylvania |
| 89 | Helen Murphy | 22 | Daughter-in-law | — | Pennsylvania |
| 90 | Helen Murphy | 1 | Granddaughter | — | Pennsylvania |
| 91 | Daniel Davis | 47 | Head | Laborer | Delaware |
| 92 | Anna Davis | 38 | Wife | — | Delaware |
| 93 | Bertha Davis | 18 | Daughter | Operator | Pennsylvania |
| 94 | Annabelle Davis | 17 | Daughter | — | Pennsylvania |
| 95 | Stanley Kuntz | 25 | Head | Weaver | Poland |
| 96 | Julia Kuntz | 23 | Wife | — | Pennsylvania |
| 97 | Charlotte Kuntz | 1 | Daughter | — | Pennsylvania |
| 98 | Joseph Mis | 50 | Father-in-law | Soap Maker | Poland |
| 99 | Ida Mis | 48 | Mother-in-law | — | Poland |
| 100 | Joseph Jr. Mis | 20 | Brother-in-law | — | Pennsylvania |
Pedigree Summary
Dorothy + 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 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)