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Bertha Brown — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Bertha Brown across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & George — first a daughter (b.~1910), then head of a 8-person household.
Age 20
b. ~1910
Female
Daughter
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Brown |
| Given Name | Bertha A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | B M K |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Bookkeeper |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1910 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Mary Brown | Daughter | — | 17 | ~1913 |
| Bertha Brown | Daughter | — | 20 | ~1910 |
| Thelma Brown | Daughter | — | 25 | ~1905 |
| George Brown | Head | — | 55 | ~1875 |
| Walter Brown | Son | — | 9 | ~1921 |
| George Brown | Son | — | 13 | ~1917 |
| Lloyd Brown | Son | — | 23 | ~1907 |
| Bertha Brown | Spouse | — | 50 | ~1880 |
Census Appearances
1910
Allegheny, Pennsylvania
Daughter, age 2
Allegheny, Pennsylvania · implied b. ~1908 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Bertha I. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Daughter, age 10
Allegheny, Pennsylvania · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Bertha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 20
Allegheny, Pennsylvania · implied b. ~1910 — 8 household members
| Surname | Brown |
| Given Name | Bertha A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Bookkeeper |
| Industry | B M K |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Brown across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father John Brown (~0.92 confidence) and father George Brown (~0.92 confidence) and mother Bertha Brown (~0.92 confidence) and mother Bertha Brown (~0.92 confidence) and father Thomas Brown (~0.92 confidence) and mother Bertha Brown (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Brown
b. ~1875
Source father
● Household
· direct · ~0.92
Father
George Brown
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Bertha Brown
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Bertha Brown
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
Thomas Brown
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Bertha Brown
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Bertha Brown
Daughter · 1930 · age 20 · b. ~1910 · Pennsylvania
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Sibling
Mary Brown
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lloyd Brown
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Brown
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Brown
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Brown
Sibling · 1930 · age 25
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
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
14 people indexed on this census page (ia:1930:fifteenthcensus00reel1974:0290)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Myrtle E Mitchell | 32 | Daughter | — | Pennsylvania |
| 52 | Ralph W Gillium | 32 | Head | Laundryman | Pennsylvania |
| 53 | Helen R Gillium | 28 | Wife | — | Pennsylvania |
| 54 | Doris M Gillium | 7 | Daughter | — | Pennsylvania |
| 55 | James R Gillium | 5 | Son | — | California |
| 56 | George O Brown | 55 | Head | Machinist | Pennsylvania |
| 57 | Bertha A Brown | 50 | Wife | — | Pennsylvania |
| 58 | Thelma M Brown | 25 | Daughter | Yellow Jacket | Pennsylvania |
| 59 | Lloyd J Brown | 23 | Son | Chauffeur | Pennsylvania |
| 60 | Bertha A Brown THIS PERSON | 20 | Daughter | Bookkeeper | Pennsylvania |
| 61 | Mary E Brown | 17 | Daughter | — | Pennsylvania |
| 62 | George O Brown | 13 | Son | — | Pennsylvania |
| 63 | Walter R Brown | 9 | Son | — | Pennsylvania |
| 64 | Sadie E Lampert | 44 | Head | — | Pennsylvania |
Related Census Records
Pedigree Summary
Bertha + 5 siblings
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)