DB
Donald Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cambria-County, Pennsylvania
Our Model Tree links this Donald Brown across the 1920, 1930 and 1940 US Censuses in Cambria-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Lucy & Edwin — first a son (b.~1916), then head of a 3-person household.
Age 24
b. ~1916
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cambria-County, Pennsylvania |
| Surname | Brown |
| Given Name | Donald L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Johnstown city |
| 1935 Residence (County) | Cambria |
| Additional Details | |
| Occupation | Laborer |
| Industry | Steel mill |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 534 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Johnstown City |
| Est. Birth Year | ~1916 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Lillian Brown | Daughter | — | 18 | ~1922 |
| Lucy Brown | Head | — | 60 | ~1880 |
| Donald Brown | Son | — | 24 | ~1916 |
Census Appearances
1920
Cambria, Pennsylvania
Son, age 2
Cambria, Pennsylvania · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| 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 |
1930
Cambria, Pennsylvania
Son, age 13
Cambria, Pennsylvania · implied b. ~1917 — 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 | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Cambria-County, Pennsylvania
Son, age 24
Cambria-County, Pennsylvania · implied b. ~1916 — 3 household members
| Surname | Brown |
| Given Name | Donald L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Johnstown city |
| 1935 Residence (County) | Cambria |
| Occupation | Laborer |
| Industry | Steel mill |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 534 |
| 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 Donald Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Lucy Brown (~0.92 confidence) and father Edwin Brown (~0.92 confidence) and father Edwin Brown (~0.92 confidence) and mother Bess Brown (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Lucy Brown
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
Edwin Brown
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Edwin Brown
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Bess Brown
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Brown
Son · 1940 · age 24 · b. ~1916 · Pennsylvania
★ You are viewing this record
Sibling
Lillian Brown
Sibling · 1940 · age 18
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 — Cambria-County, Pennsylvania
Open full size
1940 US Federal Census — Cambria-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03455-00657)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herman C. Novelli | 33 | Head | Crancman | Italy |
| 2 | Bella S. Novelli | 30 | Wife | — | Pennsylvania |
| 3 | Leonora Novelli | 10 | Daughter | — | Pennsylvania |
| 4 | Ralph C. Novelli | 9 | Son | — | Pennsylvania |
| 5 | Louis R. Novelli | 7 | Son | — | Pennsylvania |
| 6 | Mary J. Novelli | 5 | Daughter | — | Pennsylvania |
| 7 | Lucy A. Brown | 60 | Head | — | Pennsylvania |
| 8 | Donald L. Brown THIS PERSON | 24 | Son | Laborer | Pennsylvania |
| 9 | Lillian M. Brown | 18 | Daughter | Housekeeper | Pennsylvania |
| 10 | Howard W. Musselman | 36 | Head | Conductor | Pennsylvania |
| 11 | Mildred P. Musselman | 31 | Wife | — | Pennsylvania |
| 12 | Oscar L. Stiffler | 44 | Head | Engineer | Pennsylvania |
| 13 | Catherine M. Stiffler | 39 | Wife | — | Pennsylvania |
| 14 | Betty R. Stiffler | 20 | Daughter | — | Pennsylvania |
| 15 | Robert S. Stiffler | 18 | Son | — | Pennsylvania |
| 16 | Oscar L. Stiffler | 14 | Son | — | Pennsylvania |
| 17 | Clifford M. Stiffler | 13 | Son | — | Pennsylvania |
| 18 | Homer Stiffler | 12 | Son | — | Pennsylvania |
| 19 | Harry C. Stiffler | 10 | Son | — | Pennsylvania |
| 20 | Mildred P. Stiffler | 9 | Daughter | — | Pennsylvania |
| 21 | Patrick Gavin | 77 | Father-in-law | — | Ireland |
| 22 | Edward J. Stiffler | 66 | Head | Laborer | Pennsylvania |
| 23 | Ellen L. Stiffler | 65 | Wife | — | Pennsylvania |
| 24 | Wilma M. Root | 23 | Granddaughter | — | Pennsylvania |
| 25 | Dolores C. Stiffler | 11 | Granddaughter | — | Pennsylvania |
| 26 | Ronald H. Stiffler | 3 | Grandson | — | Pennsylvania |
| 27 | Albert Patch | 47 | Head | Master Mechanic | Pennsylvania |
| 28 | Gertrude G. Patch | 45 | Wife | — | Pennsylvania |
| 29 | Mary Ruth Patch | 18 | Daughter | Saleswoman | Pennsylvania |
| 30 | Edward J. Hargreaves | 51 | Head | Machinist | Pennsylvania |
| 31 | Louann Hargreaves | 48 | Wife | — | Pennsylvania |
| 32 | Garnet M. Murray | 27 | Daughter | Housekeeper | Pennsylvania |
| 33 | Lou Ann Murray | 3 | Granddaughter | — | Pennsylvania |
| 34 | Joseph F. Parker | 44 | Head | Proprietor | Czechoslovakia |
| 35 | Marie A. Parker | 42 | Wife | — | Ohio |
| 36 | Charles C. Mcmillan | 41 | Head | Machine Operator | Pennsylvania |
| 37 | Anna H. Mcmillan | 41 | Wife | — | Pennsylvania |
| 38 | Clarence C. Mcmillan | 25 | Son | Repairman | Pennsylvania |
| 39 | Mabel L. Mcmillan | 23 | Daughter-in-law | — | Pennsylvania |
| 40 | Leonard Carlson | 41 | Head | Repairman | Pennsylvania |
Pedigree Summary
Donald + 1 sibling
Gen 1 · 4 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)