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Margaret Black — 1940 US Census Record
Model Tree available1940 United States Federal Census · Blair-County, Pennsylvania
Our Model Tree links this Margaret Black across the 1920, 1930 and 1940 US Censuses in Blair-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents C & Effie — first a daughter (b.~1906), then head of a 2-person household.
Age 34
b. ~1906
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Blair-County, Pennsylvania |
| Surname | Black |
| Given Name | Margaret E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Altoona City |
| 1935 Residence (County) | Blair |
| Additional Details | |
| Occupation | Clerk |
| Industry | Retail Grocery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 624 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerk |
| Township / Ward | Altoona City |
| Est. Birth Year | ~1906 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Black | Daughter | — | 34 | ~1906 |
| Effie Black | Head | — | 63 | ~1877 |
Census Appearances
1920
Blair, Pennsylvania
Daughter, age 14
Blair, Pennsylvania · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Blair, Pennsylvania
Daughter, age 24
Blair, Pennsylvania · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Saleswoman |
| Industry | Shaffer Stores |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Blair-County, Pennsylvania
Daughter, age 34
Blair-County, Pennsylvania · implied b. ~1906 — 2 household members
| Surname | Black |
| Given Name | Margaret E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Altoona City |
| 1935 Residence (County) | Blair |
| Occupation | Clerk |
| Industry | Retail Grocery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 624 |
| Highest Grade | Hs 4 |
| 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 Margaret Black across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father C Black (~0.92 confidence) and mother Effie Black (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
C Black
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Effie Black
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Black
Daughter · 1940 · age 34 · b. ~1906 · 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 — Blair-County, Pennsylvania
Open full size
1940 US Federal Census — Blair-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03439-00596)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Seidenburg | 4 | Son | — | Pennsylvania |
| 2 | W. Howard Moore | 30 | Head | Manager | Pennsylvania |
| 3 | Helen S. Moore | 29 | Wife | — | Pennsylvania |
| 4 | Joan M. Moore | 3 | Daughter | — | Pennsylvania |
| 5 | Ezra M. Gomer | 68 | Head | Janitor | Pennsylvania |
| 6 | Sarah J. Gomer | 61 | Wife | — | Pennsylvania |
| 7 | Beona S. Smith | 21 | Daughter | — | Pennsylvania |
| 8 | Margaret Woomer | 72 | Head | — | Pennsylvania |
| 9 | Effie E. Black | 63 | Head | Manager | Pennsylvania |
| 10 | Margaret E. Black THIS PERSON | 34 | Daughter | Clerk | Pennsylvania |
| 11 | — | None | — | — | — |
| 12 | Paul R. Christine | 41 | Head | Brakeman | Pennsylvania |
| 13 | Julia Christine | 40 | Wife | — | Pennsylvania |
| 14 | Ray E. Stradley | 43 | Head | Electrician | Pennsylvania |
| 15 | Margaret E. Stradley | 43 | Wife | Clerk | Pennsylvania |
| 16 | Mary M. Stradley | 81 | Mother | — | Pennsylvania |
| 17 | Harvey W. Welshans | 57 | Head | Machinist | Pennsylvania |
| 18 | Margaret G. Welshans | 54 | Wife | — | Pennsylvania |
| 19 | Marian E. Welshans | 14 | Niece | — | Pennsylvania |
| 20 | Florence M. Hall | 48 | Head | — | Pennsylvania |
| 21 | Benjamin W. Hall | 36 | Brother | Machinist | Pennsylvania |
| 22 | Edith M. Hall | 32 | Sister | Stenographer | Pennsylvania |
| 23 | Ernest Hill | 46 | Head | Brakeman | England |
| 24 | Ruth L. Hill | 46 | Wife | — | Pennsylvania |
| 25 | Arabella Coleman | 64 | Head | — | Pennsylvania |
| 26 | Zelda S. Coleman | 29 | Daughter | Waitress | Pennsylvania |
| 27 | Patsy Triglia | 23 | Head | Laborer | Pennsylvania |
| 28 | Alice Triglia | 15 | Wife | — | Pennsylvania |
| 29 | James B. Payne | 51 | Head | Recorder | Pennsylvania |
| 30 | Edna M. Payne | 41 | Wife | — | Pennsylvania |
| 31 | James B. Payne | 4 | Son | — | Pennsylvania |
| 32 | Mary K. Payne | 3 | Daughter | — | Pennsylvania |
| 33 | Catherine M. Bristol | 20 | Maid | Maid | Pennsylvania |
| 34 | — | None | — | — | — |
| 35 | Frank F. Cullen | 60 | Head | Executive | Pennsylvania |
| 36 | Mary F. Cullen | 60 | Wife | — | Pennsylvania |
| 37 | Arthur M. Hambright | 23 | Head | Salesman | Pennsylvania |
| 38 | Betty M. Hambright | 21 | Wife | — | Pennsylvania |
| 39 | Nancy L. Hambright | 4 | Daughter | — | Pennsylvania |
| 40 | Michael J. Carey | 34 | Head | Pipe Fitter | Pennsylvania |
Pedigree Summary
Margaret
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)