EC
Emma Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Emma Clark across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John — first a daughter (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Clark |
| Given Name | Emma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Housework |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 65 |
| Income (1939) | 400 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Housework |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1920 |
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 Emma | Age | Birth yr |
|---|---|---|---|---|
| Emma Clark | Daughter | — | 20 | ~1920 |
| Agnes Clark | Daughter | — | 18 | ~1922 |
| John Jackson | Head | — | 50 | ~1890 |
| Wardell Clark | Other | — | 1 | ~1939 |
| Emma Clark | Other | — | 30 | ~1910 |
| Bernard Newel | Other | — | 39 | ~1901 |
Census Appearances
1920
Philadelphia, Pennsylvania
Other, age 2
Philadelphia, Pennsylvania · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Elizabeth |
| Relationship to Head | Boarder |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Mother Tongue | English |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Philadelphia, Pennsylvania
Other, age 11
Philadelphia, Pennsylvania · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Emma |
| Relationship to Head | Boarder |
| Sex | F |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Philadelphia-County, Pennsylvania
Daughter, age 20
Philadelphia-County, Pennsylvania · implied b. ~1920 — 6 household members
| Surname | Clark |
| Given Name | Emma |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Housework |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 65 |
| Income (1939) | 400 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Emma Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Jackson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Jackson
b. ~1890
Source father
● Household
· direct · ~0.92
This person
Anchor record
Emma Clark
Daughter · 1940 · age 20 · b. ~1920 · Pennsylvania
★ You are viewing this record
Sibling
Agnes Clark
Sibling · 1940 · age 18
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 — 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-t0627-03729-00095)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James Yates | 60 | Head | Cemeter | Virginia |
| 42 | Mary Yates | 50 | Wife | Stockeeper | N. Carolina |
| 43 | Alice Reed | 40 | Lodger | Housework | Maryland |
| 44 | Samuel Jaffe | 45 | Head | Stockeeper | Russia |
| 45 | Rebecca Jaffe | 45 | Wife | — | Russia |
| 46 | Rose Jaffe | 17 | Daughter | — | Phila Penna |
| 47 | Emma Jaffe | 14 | Daughter | — | Phila Penna |
| 48 | David Jaffe | 10 | Son | — | Phila Penna |
| 49 | Herman Katz | 37 | Head | Bartender | Russia |
| 50 | Mollie Katz | 35 | Wife | — | Russia |
| 51 | Bernard Katz | 14 | Son | — | Phila Penna |
| 52 | Marvin Katz | 12 | Son | — | Phila Penna |
| 53 | Samuel Williams | 76 | Head | — | Phila Penna |
| 54 | Mary Williams | 77 | Wife | — | Phila Penna |
| 55 | James Underdue | 45 | Lodger | Janitor | Phila Penna |
| 56 | Elizabeth Stiel | 82 | Lodger | — | Penna Penna |
| 57 | John W. King | 50 | Head | Messenger | Virginia |
| 58 | Della King | 28 | Wife | — | Virginia |
| 59 | Charles King | 5 | Son | — | Phila Penna |
| 60 | John W. Jackson | 50 | Head | Laborer | Virginia |
| 61 | Emma Clark | 30 | Housekeeper | Housekeeper | Maryland |
| 62 | Emma Clark THIS PERSON | 20 | Daughter | Housework | Maryland |
| 63 | Agnes Clark | 18 | Daughter | — | Maryland |
| 64 | Wardell Clark | 1 | Grandson | — | Phila Penna |
| 65 | Bernard Newel | 39 | Lodger | Laborer | Virginia |
| 66 | Laura Waters | 74 | Head | — | Maryland |
| 67 | Charles Brown | 100 | Lodger | Laborer | Phila Penna |
| 68 | George Chambers | 43 | Lodger | Laborer | Illinois |
| 69 | Bertha Demask | 50 | Head | — | Georgia |
| 70 | Carlton Demask | 16 | Son | — | Phila Penna |
| 71 | Forest Demask | 18 | Son | — | Phila Penna |
| 72 | Robert Demask | 13 | Son | — | Phila Penna |
| 73 | Taylor Rollheur | 32 | Head | Cigar Maker | Georgia |
| 74 | Dorothy Rollheur | 33 | Wife | — | Phila Penna |
| 75 | John Rollheur | 14 | Son | — | Phila Penna |
| 76 | Bernice Rollheur | 5 | Daughter | — | Phila Penna |
| 77 | Walter Coleman | 37 | Head | Laborer | S. Carolina |
| 78 | Grace Coleman | 33 | Wife | — | Washington |
| 79 | Margaret Rumford | 24 | Head | Mothers Assist Fund | S. Carolina |
| 80 | Walter Rumford | 3 | Son | — | Phila. |
Pedigree Summary
Emma + 1 sibling
Gen 1 · 1 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)