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Clarence Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Clarence Clark across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 7-person household.
Age 54
b. ~1886
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Clark |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Darby Twp. |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | Junking |
| Industry | For self |
| Class of Worker | OA |
| Income (1939) | 156 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Junking |
| Township / Ward | Darby Twp |
| Est. Birth Year | ~1886 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Lucille Clark | Daughter | — | 20 | ~1920 |
| Betty Clark | Daughter | — | 12 | ~1928 |
| John Clark | Son | — | 12 | ~1928 |
| Donald Clark | Son | — | 14 | ~1926 |
| Clarence Clark | Head | — | 54 | ~1886 |
| Hattie Clark | Spouse | — | 51 | ~1889 |
| Wilson Clark | Son | — | 24 | ~1916 |
Census Appearances
1920
Delaware, Pennsylvania
Head, age 32
Delaware, Pennsylvania · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Charles W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Silk Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Delaware, Pennsylvania
Head, age 42
Delaware, Pennsylvania · implied b. ~1888 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Charles H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 35 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Odd Jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Delaware-County, Pennsylvania
Head, age 54
Delaware-County, Pennsylvania · implied b. ~1886 — 7 household members
| Surname | Clark |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Darby Twp. |
| 1935 Residence (County) | Delaware |
| Occupation | Junking |
| Industry | For self |
| Class of Worker | OA |
| Income (1939) | 156 |
| Highest Grade | No 5 |
| 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 Clarence Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Clarence Clark
Head · 1940 · age 54 · b. ~1886 · Pennsylvania
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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-t0627-03491-00056)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Brown | 8 | Son | — | South Carolina |
| 2 | Justice Brown | 6 | Daughter | — | South Carolina |
| 3 | Janet Brown | 2 | Daughter | — | Pennsylvania |
| 4 | George Clark | 23 | Head | Janitor | Pennsylvania |
| 5 | Helen Clark | 19 | Wife | — | Pennsylvania |
| 6 | Della Clark | 2 | Daughter | — | Pennsylvania |
| 7 | Harriet Brockenbrough | 17 | Head | New Worker | Pennsylvania |
| 8 | Madeline Brockenbrough | 17 | Wife | — | Pennsylvania |
| 9 | Thomas Brockenbrough | 37 | Head | Laborer | Virginia |
| 10 | Bessie Brockenbrough | 31 | Wife | — | Pennsylvania |
| 11 | Edith Brockenbrough | 14 | Daughter | — | Pennsylvania |
| 12 | Wilbert Brockenbrough | 13 | Son | — | Pennsylvania |
| 13 | Edward Brockenbrough | 12 | Son | — | Pennsylvania |
| 14 | Mary Brockenbrough | 11 | Daughter | — | Pennsylvania |
| 15 | Thomas Brockenbrough | 8 | Son | — | Pennsylvania |
| 16 | Betty Brockenbrough | 6 | Daughter | — | Pennsylvania |
| 17 | Phyllis Brockenbrough | 5 | Daughter | — | Pennsylvania |
| 18 | Robert Brockenbrough | 4 | Son | — | Pennsylvania |
| 19 | Shirley Brockenbrough | 0 | Daughter | — | Pennsylvania |
| 20 | John Purnell | 22 | Head | Laborer | Pennsylvania |
| 21 | Russell Collier | 16 | Nephew | — | Maryland |
| 22 | Leroy Porter | 45 | Head | Laborer | Virginia |
| 23 | Claudine Porter | 47 | Wife | Laborer | Virginia |
| 24 | J. Melbourne Smith | 43 | Head | Supervising Principal | Pennsylvania |
| 25 | Beatrice Smith | 37 | Wife | Teacher | Delaware |
| 26 | Enumeration | 1940 | Started | — | April |
| 27 | James Bell | 43 | Head | Janitor | Texas |
| 28 | Muriel Bell | 41 | Wife | Housework | Pennsylvania |
| 29 | Clarence Clark THIS PERSON | 54 | Head | Junking | Maryland |
| 30 | Hattie Clark | 51 | Wife | — | Maryland |
| 31 | Wilson Clark | 24 | Son | Laborer | Pennsylvania |
| 32 | Lucille Clark | 20 | Daughter | Housework | Pennsylvania |
| 33 | Donald Clark | 14 | Son | — | Pennsylvania |
| 34 | Betty Clark | 12 | Daughter | — | Pennsylvania |
| 35 | John Clark | 12 | Son | — | Pennsylvania |
| 36 | John W. Trent | 47 | Head | Clerk | Pennsylvania |
| 37 | Beatrice Trent | 47 | Wife | — | Virginia |
| 38 | Archie Trent | 20 | Son | New Worker | Pennsylvania |
| 39 | William Trent | 18 | Son | New Worker | Pennsylvania |
| 40 | Edna Trent | 16 | Daughter | — | Pennsylvania |
Related Census Records
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)