DC
Dorothy Clark — 1930 US Census Record
Model Tree available1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this Dorothy Clark across the 1910, 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed), with identified parents Walter & Nellie — first a daughter (b.~1908), then head of a 8-person household.
Age 22
b. ~1908
Female
Daughter
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Clark |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 22 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Operator |
| Industry | Telephone |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Operator |
| Township / Ward | Philadelphia City |
| Est. Birth Year | ~1908 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Clark | Daughter | — | 22 | ~1908 |
| Edith Boyd | Daughter | — | 21 | ~1909 |
| Walter Clark | Head | — | 50 | ~1880 |
| Mary Clark | Other | — | 18 | ~1912 |
| Robert Boyd | Other | — | 22 | ~1908 |
| Mervyl Clark | Son | — | 24 | ~1906 |
| Jane Boyd | Spouse | — | 27 | ~1903 |
| Nellie Clark | Spouse | — | 46 | ~1884 |
Census Appearances
1910
Philadelphia, Pennsylvania
Daughter, age 2
Philadelphia, Pennsylvania · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Dorothy H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| 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
Other, age 11
Philadelphia, Pennsylvania · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Dorothy D. |
| Relationship to Head | Niece |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Daughter, age 22
Philadelphia, Pennsylvania · implied b. ~1908 — 8 household members
| Surname | Clark |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 22 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Operator |
| Industry | Telephone |
| 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 Clark across 3 US Census years (1910, 1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage. Identified parents: father Walter Clark (~0.92 confidence) and mother Nellie Clark (~0.92 confidence) and father James Clark (~0.92 confidence) and mother Margaret Clark (~0.92 confidence) and mother Jane Boyd (~0.60 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.86
Father
Walter Clark
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Nellie Clark
b. ~1884
Source mother
● Household
· direct · ~0.92
Father
James Clark
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Margaret Clark
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Jane Boyd
b. ~1903
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Dorothy Clark
Daughter · 1930 · age 22 · b. ~1908 · Pennsylvania
★ You are viewing this record
Sibling
Edith Boyd
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mervyl Clark
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:fifteenthcensus00reel2119:0964)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Benjamin Ralph | 31 | Head | Clerk | Pennsylvania |
| 52 | Mary L. Ralph | 35 | Wife | — | Pennsylvania |
| 53 | Ralph Jr. Ralph | 12 | Son | — | Pennsylvania |
| 54 | Robert Ralph | 10 | Son | — | Pennsylvania |
| 55 | Alice M. Ralph | 8 | Daughter | — | Pennsylvania |
| 56 | John H. Axford | 57 | Head | Inspector | Pennsylvania |
| 57 | Mary A. Axford | 52 | Wife | — | Pennsylvania |
| 58 | John Howard Axford | 21 | Son | — | Pennsylvania |
| 59 | Eleanor Axford | 18 | Daughter | — | Pennsylvania |
| 60 | George Axford | 48 | Son | Officer | Pennsylvania |
| 61 | Louis Friedman | 55 | Head | Owner | Lithuania |
| 62 | Sadie Friedman | 45 | Wife | — | Russia |
| 63 | Rose Friedman | 25 | Daughter | Teacher | Pennsylvania |
| 64 | Harry Friedman | 22 | Son | Decorator | Pennsylvania |
| 65 | Arthur Friedman | 17 | Son | — | Pennsylvania |
| 66 | Clement Murphy | 53 | Head | — | Pennsylvania |
| 67 | Frederick Axford | 45 | Head | — | Pennsylvania |
| 68 | Mabel E. Axford | 53 | Daughter | Bookkeeper | Pennsylvania |
| 69 | Margaret Axford | 27 | Daughter | Dressmaker | Pennsylvania |
| 70 | Harold Axford | 24 | Son | Operator | Pennsylvania |
| 71 | Walter Clark | 50 | Head | — | Maryland |
| 72 | Nellie Clark | 46 | Wife | — | Pennsylvania |
| 73 | Mervyl Clark | 24 | Son | Driver | Pennsylvania |
| 74 | Mary Clark | 18 | Daughter-in-law | Master | Pennsylvania |
| 75 | Dorothy Clark THIS PERSON | 22 | Daughter | Operator | Pennsylvania |
| 76 | Jane Boyd | 27 | Wife | Conductor | Pennsylvania |
| 77 | Edith Boyd | 21 | Daughter | — | Pennsylvania |
| 78 | Robert Boyd | 22 | Son-in-law | — | Pennsylvania |
| 79 | Solomon Herman | 57 | Head | Metal Worker | Germany |
| 80 | Ida Herman | 52 | Wife | — | Delaware |
| 81 | Lillian Herman | 25 | Daughter | Bookkeeper | Pennsylvania |
| 82 | Pearl Herman | 22 | Daughter | Teacher | Pennsylvania |
| 83 | Gertrude Herman | 11 | Daughter | — | Pennsylvania |
| 84 | Earl C. Reynolds | 37 | Head | Electrician | Pennsylvania |
| 85 | Mabel R. Reynolds | 35 | Wife | — | Pennsylvania |
| 86 | Earl Jr. Reynolds | 5 | Son | — | Pennsylvania |
| 87 | John J. O'Donnell | 63 | Head | Superintendent | Pennsylvania |
| 88 | Annie E. O'Donnell | 62 | Wife | — | Australia |
| 89 | Winifred O'Donnell | 27 | Daughter | Box Maker | Pennsylvania |
| 90 | Agnes O'Donnell | 24 | Daughter | Box Maker | Pennsylvania |
| 91 | John O'Donnell | 22 | Son | Clerk | Pennsylvania |
| 92 | Frank Lucca | 32 | Head | Cabinet Maker | Italy |
| 93 | Mary Lucca | 29 | Daughter | — | Pennsylvania |
| 94 | William Lucca | 4 | Son | — | Pennsylvania |
| 95 | Joseph Lucca | 2 | Son | — | Pennsylvania |
| 96 | Jacob Russell | 45 | Head | Dealer | Lithuania |
| 97 | Esther Russell | 47 | Wife | — | Russia |
| 98 | Lillie Russell | 18 | Daughter | Cashier | Pennsylvania |
| 99 | Joseph Russell | 10 | Son | Helper | Pennsylvania |
| 100 | Isaac Kaplan | 45 | Lodger | Peddler | Russia |
Pedigree Summary
Dorothy + 2 siblings
Gen 1 · 5 parents
~0.86
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)