DB
Donald Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Donald Brown across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Frank & Josephine — first a son (b.~1918), then head of a 6-person household.
Age 22
b. ~1918
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Brown |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Penn Township |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Gardner |
| Industry | Nursery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 704 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Gardner |
| Township / Ward | Penn Township |
| Est. Birth Year | ~1918 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Anna Brown | Daughter | — | 20 | ~1920 |
| Leo Brown | Head | — | 50 | ~1890 |
| Donald Brown | Son | — | 22 | ~1918 |
| Robert Brown | Son | — | 15 | ~1925 |
| Joseph Brown | Son | — | 24 | ~1916 |
| Josephine Brown | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 1
Allegheny, Pennsylvania · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 12
Allegheny, Pennsylvania · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 22
Allegheny-County, Pennsylvania · implied b. ~1918 — 6 household members
| Surname | Brown |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Penn Township |
| 1935 Residence (County) | Allegheny |
| Occupation | Gardner |
| Industry | Nursery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 704 |
| Highest Grade | H 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 Donald Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Brown (~0.92 confidence) and mother Josephine Brown (~0.92 confidence) and mother Harriet Brown (~0.92 confidence) and father Leo Brown (~0.92 confidence) and father Lacey Brown (~0.92 confidence) and mother Mildred Brown (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Brown
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Josephine Brown
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Harriet Brown
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
Leo Brown
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Lacey Brown
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Mildred Brown
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Brown
Son · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
Robert Brown
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Brown
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Brown
Sibling · 1940 · age 20
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
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-t0627-03414-00298)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clair Ziegler | 14 | Daughter | Inspector | Pennsylvania |
| 2 | Virginia Ziegler | 14 | Daughter | 0 | Pennsylvania |
| 3 | Albert Ziegler | 11 | Son | — | Pennsylvania |
| 4 | Mary Ann Ziegler | 9 | Daughter | — | Pennsylvania |
| 5 | James Ziegler | 3 | Son | — | Pennsylvania |
| 6 | Mrs. John Hahn | 75 | Mother-in-law | 0 | Ohio |
| 7 | Leo J. Brown | 50 | Head | Deputy Sheriff | Pennsylvania |
| 8 | Josephine A. Brown | 51 | Wife | 0 | Pennsylvania |
| 9 | Joseph L. Brown | 24 | Son | 0 | Pennsylvania |
| 10 | Donald Brown THIS PERSON | 22 | Son | Gardner | Pennsylvania |
| 11 | Anna Marie Brown | 20 | Daughter | Secretary | Pennsylvania |
| 12 | Robert Brown | 15 | Son | 0 | Pennsylvania |
| 13 | Philip Fenstermacher | 58 | Head | Baker | Pennsylvania |
| 14 | Amie Fenstermacher | 59 | Wife | 0 | Pennsylvania |
| 15 | Mary Netrosk | 40 | Servant | Servant | Poland |
| 16 | James Simpson | 33 | Head | Bookkeeper | Pennsylvania |
| 17 | Mary Simpson | 30 | Wife | 0 | Pennsylvania |
| 18 | James Jr. Simpson | 3 | Son | — | Pennsylvania |
| 19 | Hiram Whiteman | 39 | Head | Floral Designer | Pennsylvania |
| 20 | Maryetta Whiteman | 37 | Wife | 0 | Missouri |
| 21 | Eugene Whiteman | 15 | Son | 0 | Pennsylvania |
| 22 | Robert Whiteman | 12 | Son | — | Pennsylvania |
| 23 | Herman E. Kornmeyer | 34 | Head | Mechanic | Pennsylvania |
| 24 | Verna C. Kornmeyer | 31 | Wife | 0 | Pennsylvania |
| 25 | Herman E. Jr. Kornmeyer | 3 | Son | — | Pennsylvania |
| 26 | John Reider | 63 | Head | Laborer | Pennsylvania |
| 27 | Catherine Reider | 61 | Sister | 0 | Pennsylvania |
| 28 | George Reider | 44 | Brother | 0 | Pennsylvania |
| 29 | Eaton Line | None | — | — | — |
| 30 | Katherine Hahn | 36 | Head | 0 | Pennsylvania |
| 31 | Margaret Mary Hahn | 12 | Daughter | — | Pennsylvania |
| 32 | John Mockring | 33 | Head | Foreman | Pennsylvania |
| 33 | Elizabeth Mockring | 30 | Wife | 0 | Pennsylvania |
| 34 | Lois Ann Mockring | 8 | Daughter | — | Pennsylvania |
| 35 | Mary Rita Mockring | 7 | Daughter | — | Pennsylvania |
| 36 | James P. Cassidy | 50 | Head | Mechanic | Pennsylvania |
| 37 | Henrietta Cassidy | 50 | Wife | 0 | Pennsylvania |
| 38 | Kenneth Nipple | 32 | Head | Salesman | Pennsylvania |
| 39 | Helen Nipple | 23 | Wife | Homemaker | Pennsylvania |
| 40 | Edward H. Thomas | 33 | Head | Helper | Pennsylvania |
Pedigree Summary
Donald + 3 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 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)