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Frederick Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Frederick Brown across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 11-person household.
Age 17
b. ~1923
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Brown |
| Given Name | Frederick Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Harmar Twp |
| Est. Birth Year | ~1923 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frederick | Age | Birth yr |
|---|---|---|---|---|
| Clyde Brown | Son | — | 9 | ~1931 |
| Frances Brown | Spouse | — | 46 | ~1894 |
| Harry Brown | Son | — | 6 | ~1934 |
| Edward Brown | Son | — | 15 | ~1925 |
| Mary Brown | Daughter | — | 4 | ~1936 |
| Darlene Brown | Daughter | — | 1 | ~1939 |
| Frederick Brown | Head | — | 50 | ~1890 |
| Frederick Brown | Son | — | 17 | ~1923 |
| James Brown | Son | — | 10 | ~1930 |
| Roland Brown | Son | — | 13 | ~1927 |
| Shirley Brown | Daughter | — | 3 | ~1937 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 7
Allegheny, Pennsylvania · implied b. ~1923 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Frederick |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Germany |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 17
Allegheny-County, Pennsylvania · implied b. ~1923 — 11 household members
| Surname | Brown |
| Given Name | Frederick Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Pennsylvania |
| 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 Frederick Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frederick Brown
Son · 1940 · age 17 · b. ~1923 · Pennsylvania
★ You are viewing this record
Sibling
Clyde Brown
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darlene Brown
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Brown
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roland Brown
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Brown
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Brown
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Brown
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Brown
Sibling · 1940 · age 10
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-t0627-03404-00952)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Hanlon | 28 | Head | Coal Miner | Pennsylvania |
| 2 | Betty Hanlon | 18 | Wife | — | Pennsylvania |
| 3 | Patty J. Hanlon | 0 | Daughter | — | Pennsylvania |
| 4 | Robert Moody | 52 | Head | Janitor | Pennsylvania |
| 5 | Robert Webster | 69 | Head | — | Scotland |
| 6 | Frederick Brown | 50 | Head | Laborer | Germany |
| 7 | Frances Brown | 46 | Wife | — | Pennsylvania |
| 8 | Frederick Jr. Brown THIS PERSON | 17 | Son | — | Pennsylvania |
| 9 | Edward Brown | 15 | Son | — | Pennsylvania |
| 10 | Roland Brown | 13 | Son | — | Pennsylvania |
| 11 | James Brown | 10 | Son | — | Pennsylvania |
| 12 | Clyde Brown | 9 | Son | — | Pennsylvania |
| 13 | Harry Brown | 6 | Son | — | Pennsylvania |
| 14 | Mary Jane Brown | 4 | Daughter | — | Pennsylvania |
| 15 | Shirley Brown | 3 | Daughter | — | Pennsylvania |
| 16 | Darlene Brown | 1 | Daughter | — | Pennsylvania |
| 17 | Paul D. Mass | 46 | Head | — | Pennsylvania |
| 18 | Alex Walmsley | 24 | Head | Laborer | Pennsylvania |
| 19 | Ruth Walmsley | 23 | Wife | — | Pennsylvania |
| 20 | Elizabeth Walmsley | 5 | Daughter | — | Pennsylvania |
| 21 | Mike Divinsky | 38 | Head | Laborer | Russia |
| 22 | Grace Divinsky | 32 | Wife | — | New York |
| 23 | George Divinsky | 16 | Son | Bartender | Pennsylvania |
| 24 | Margaret Divinsky | 15 | Daughter | — | Pennsylvania |
| 25 | Elizabeth Divinsky | 13 | Daughter | — | Pennsylvania |
| 26 | Andrew Divinsky | 7 | Son | — | Pennsylvania |
| 27 | Steve Divinsky | 3 | Son | — | Pennsylvania |
| 28 | Paul Divinsky | 0 | Son | — | Pennsylvania |
| 29 | Richard Mooney | 38 | Head | Salesman | Connecticut |
| 30 | Bernice Mooney | 34 | Wife | Saleswoman | Connecticut |
| 31 | Robert Mooney | 21 | Son | Waiter | New York |
| 32 | Leo Warren | 42 | Head | — | Pennsylvania |
| 33 | Mary Warren | 35 | Wife | — | Scotland |
| 34 | Leo Jr. Warren | 18 | Son | Laborer | Pennsylvania |
| 35 | Mary M. Warren | 16 | Daughter | — | Pennsylvania |
| 36 | Francis Warren | 14 | Son | — | Pennsylvania |
| 37 | Charles Warren | 13 | Son | — | Pennsylvania |
| 38 | David Warren | 10 | Son | — | Ohio |
| 39 | James Warren | 6 | Son | — | Pennsylvania |
| 40 | Shirley A. Warren | 4 | Daughter | — | Pennsylvania |
Related Census Records
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)