BC
Bertha Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Bertha Clark across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1879), then head of a 9-person household.
Age 61
b. ~1879
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Clark |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Wilkinsburg borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Wilkinsburg Borough |
| Est. Birth Year | ~1879 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Bertha Clark | Spouse | — | 61 | ~1879 |
| Edward Clark | Son | — | 19 | ~1921 |
| Bertha Clark | Daughter | — | 26 | ~1914 |
| Bernice Clark | Daughter | — | 14 | ~1926 |
| Francis Clark | Son | — | 27 | ~1913 |
| Alice Clark | Daughter | — | 29 | ~1911 |
| Kathleen Clark | Daughter | — | 21 | ~1919 |
| Robert Clark | Son | — | 24 | ~1916 |
| James Clark | Son | — | 23 | ~1917 |
Census Appearances
1930
Allegheny, Pennsylvania
Spouse, age 48
Allegheny, Pennsylvania · implied b. ~1882 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 27 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Spouse, age 61
Allegheny-County, Pennsylvania · implied b. ~1879 — 9 household members
| Surname | Clark |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Wilkinsburg borough |
| 1935 Residence (County) | Allegheny |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Bertha Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Bertha Clark
Spouse · 1940 · age 61 · b. ~1879 · 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03421-00577)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bertha Clark THIS PERSON | 61 | Wife | — | Pennsylvania |
| 2 | Alice Clark | 29 | Daughter | Office Clerk | Pennsylvania |
| 3 | Francis Clark | 27 | Son | Machinist | Pennsylvania |
| 4 | Bertha Clark | 26 | Daughter | Welder | Pennsylvania |
| 5 | Robert Clark | 24 | Son | Mail Paper | Pennsylvania |
| 6 | James Clark | 23 | Son | Student Draftsman | Pennsylvania |
| 7 | Kathleen Clark | 21 | Daughter | Sales Clerk | Pennsylvania |
| 8 | Edward Clark | 19 | Son | — | Pennsylvania |
| 9 | Bernice Clark | 14 | Daughter | — | Pennsylvania |
| 10 | Teresa Carney | 64 | Head | — | Pennsylvania |
| 11 | James Carney | 63 | Brother | Laborer | Pennsylvania |
| 12 | Edward Hipple | 30 | Head | Laborer | Pennsylvania |
| 13 | Mildred Hipple | 26 | Wife | — | Pennsylvania |
| 14 | Harold Hipple | 7 | Son | — | Pennsylvania |
| 15 | G. Paul Moore | 60 | Head | Salesman | Pennsylvania |
| 16 | Frances Moore | 28 | Wife | Teacher | Pennsylvania |
| 17 | P. Thomas Kidd | 37 | Head | Dental Physician | Pennsylvania |
| 18 | Rachael Kidd | 37 | Wife | — | Pennsylvania |
| 19 | Thomas M. Kidd | 7 | Son | — | Pennsylvania |
| 20 | Karl M. Patterson | 39 | Head | Engineer | Virginia |
| 21 | Edith S. Patterson | 40 | Wife | Substitute Teacher | Pennsylvania |
| 22 | Alexander Stamps | 32 | Head | Press Agent | Pennsylvania |
| 23 | Grace Stamps | 28 | Wife | — | Pennsylvania |
| 24 | Marilyn Stamps | 10 | Daughter | — | Pennsylvania |
| 25 | Walter L. Dipple | 49 | Head | Attorney | Pennsylvania |
| 26 | Hazel R. Dipple | 29 | Wife | — | Pennsylvania |
| 27 | Nancy Dipple | 2 | Daughter | — | Pennsylvania |
| 28 | Delia Jackson | 18 | Maid | Maid | Pennsylvania |
| 29 | Ethel Thomas | 20 | Maid | Maid | Pennsylvania |
| 30 | Dwight Blackmore | 35 | Head | Field Examiner | Pennsylvania |
| 31 | William C. Blackmore | 12 | Son | — | Pennsylvania |
| 32 | Robert H. Blackmore | 11 | Son | — | Pennsylvania |
| 33 | Josiah H. Blackmore | 8 | Son | — | Ohio |
| 34 | Mary Kidd | 50 | Housekeeper | Housekeeper | Scotland |
| 35 | Margaret Riggs | 40 | Head | Teacher | Pennsylvania |
| 36 | E. Park Montague | 30 | Head | Engineer | Pennsylvania |
| 37 | Claire Montague | 29 | Wife | Investigator | Pennsylvania |
| 38 | Stewart Kerr | 34 | Head | Truck Driver | Pennsylvania |
| 39 | Hilda Kerr | 29 | Wife | — | Pennsylvania |
| 40 | Marilyn Kerr | 2 | Daughter | — | Pennsylvania |
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)