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Charles Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Charles Clark across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Charles & Ida — first a head (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Clark |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Repairman |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | No 8 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Repairman |
| Township / Ward | Collingdale Borough |
| Est. Birth Year | ~1905 |
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 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Clark | Daughter | — | 12 | ~1928 |
| Elizabeth Clark | Daughter | — | 14 | ~1926 |
| Charles Clark | Head | — | 35 | ~1905 |
| Florence Clark | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Delaware, Pennsylvania
Son, age 15
Delaware, Pennsylvania · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clarke |
| Given Name | Charles H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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
Delaware, Pennsylvania
Son, age 25
Delaware, Pennsylvania · implied b. ~1905 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clarke |
| Given Name | Charles H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Clerk |
| Industry | Printing & Pub. Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Delaware-County, Pennsylvania
Head, age 35
Delaware-County, Pennsylvania · implied b. ~1905 — 4 household members
| Surname | Clark |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Repairman |
| Industry | Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | No 8 |
| 1935 Residence | Pennsylvania |
| 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 Charles Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Clarke (~0.92 confidence) and mother Ida Clarke (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Clarke
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Ida Clarke
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Clark
Head · 1940 · age 35 · b. ~1905 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03490-00359)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Hamilton | 54 | Head | Painter | Pennsylvania |
| 2 | Harriette Hamilton | 62 | Wife | — | Pennsylvania |
| 3 | John E Boyle | 26 | Nephew | Clerk | Pennsylvania |
| 4 | Alfred Gramlich | 32 | Head | Draftsman | Pennsylvania |
| 5 | Kathryn Gramlich | 31 | Wife | — | New Jersey |
| 6 | Ruth Gramlich | 9 | Daughter | — | Pennsylvania |
| 7 | James Maguire | 67 | Head | Machinist | Kentucky |
| 8 | Helen Maguire | 42 | Wife | — | Kentucky |
| 9 | Robert Maguire | 22 | Son | Machinist | Pennsylvania |
| 10 | Benjamin Maguire | 18 | Son | Laborer | Pennsylvania |
| 11 | Marie Maguire | 15 | Daughter | — | Pennsylvania |
| 12 | Bernadette Maguire | 13 | Daughter | — | Pennsylvania |
| 13 | Dolores Maguire | 11 | Daughter | — | Pennsylvania |
| 14 | William Findeisen | 24 | Head | Salesman | Pennsylvania |
| 15 | Marian Findeisen | 24 | Wife | — | Pennsylvania |
| 16 | Evely Findeisen | 2 | Daughter | — | Pennsylvania |
| 17 | Anna Boettger | 61 | Mother-in-law | — | Pennsylvania |
| 18 | Evelyn Boettger | 20 | Sister-in-law | Clerk | Pennsylvania |
| 19 | James Lowry | 52 | Head | Mechanic | Pennsylvania |
| 20 | Nether Lowry | 53 | Wife | — | Pennsylvania |
| 21 | James Lowry | 25 | Son | Welder & Burner | Pennsylvania |
| 22 | Mildred Lowry | 18 | Daughter | — | Pennsylvania |
| 23 | Edna Lowry | 12 | Daughter | — | Pennsylvania |
| 24 | Frank Vandrin | 51 | Head | Mechanic | Delaware |
| 25 | Katharine Vandrin | 58 | Wife | — | Delaware |
| 26 | Francis Vandrin | 21 | Son | Assistant | New Jersey |
| 27 | Alfred Vandrin | 19 | Son | Engineer | Pennsylvania |
| 28 | Hubert Green | 38 | Head | — | Pennsylvania |
| 29 | Evelyn Green | 37 | Wife | — | Pennsylvania |
| 30 | David Green | 2 | Son | — | Maryland |
| 31 | Charles Clark THIS PERSON | 35 | Head | Repairman | Pennsylvania |
| 32 | Florence Clark | 35 | Wife | — | Pennsylvania |
| 33 | Elizabeth Clark | 14 | Daughter | — | Pennsylvania |
| 34 | Dorothy Clark | 12 | Daughter | — | Pennsylvania |
| 35 | Charles Boyle | 30 | Head | Bookkeeper | Pennsylvania |
| 36 | Edna Boyle | 27 | Wife | — | Pennsylvania |
| 37 | Charles Boyle | 5 | Son | — | Pennsylvania |
| 38 | Hargett Kinard | 28 | Head | Accountant | Pennsylvania |
| 39 | Pearl Kinard | 25 | Wife | — | Pennsylvania |
| 40 | Joan Kinard | 5 | Daughter | — | Pennsylvania |
Pedigree Summary
Charles
Gen 1 · 2 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)