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Lawrence Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Erie-County, Pennsylvania
Our Model Tree links this Lawrence Brown across the 1920, 1930 and 1940 US Censuses in Erie-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Isaac & Lily — first a head (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, Pennsylvania |
| Surname | Brown |
| Given Name | Lawrence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Harbor Creek |
| 1935 Residence (County) | Erie |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Private Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 300 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Carpenter |
| Township / Ward | Harbor Creek |
| Est. Birth Year | ~1912 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Marylin Brown | Daughter | — | 3 | ~1937 |
| Lawrence Brown | Head | — | 28 | ~1912 |
| Herbert Brown | Son | — | 5 | ~1935 |
| Genevieve Brown | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Erie, Pennsylvania
Son, age 8
Erie, Pennsylvania · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| 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
Erie, Pennsylvania
Son, age 18
Erie, Pennsylvania · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | State Highway |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Erie-County, Pennsylvania
Head, age 28
Erie-County, Pennsylvania · implied b. ~1912 — 4 household members
| Surname | Brown |
| Given Name | Lawrence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Harbor Creek |
| 1935 Residence (County) | Erie |
| Occupation | Carpenter |
| Industry | Private Works |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 300 |
| Highest Grade | Hs 3 |
| 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 Lawrence Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Isaac Brown (~0.92 confidence) and mother Lily Brown (~0.92 confidence) and mother Lillie Brown (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Isaac Brown
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Lily Brown
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Lillie Brown
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lawrence Brown
Head · 1940 · age 28 · b. ~1912 · 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 — Erie-County, Pennsylvania
Open full size
1940 US Federal Census — Erie-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03500-00687)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William Hodges | 68 | Father | — | Missouri |
| 42 | Mary Hodges | 66 | Mother | — | Pennsylvania |
| 43 | Lawrence Brown THIS PERSON | 28 | Head | Carpenter | Pennsylvania |
| 44 | Genevieve Brown | 29 | Wife | — | Pennsylvania |
| 45 | Herbert Brown | 5 | Son | — | Pennsylvania |
| 46 | Marylin Brown | 3 | Daughter | — | Pennsylvania |
| 47 | Otis Glesener | 63 | Head | — | Kansas |
| 48 | Messa Glesener | 56 | Wife | — | Pennsylvania |
| 49 | Willard Dunlap | 39 | Head | Assembler | Pennsylvania |
| 50 | Marian Dunlap | 39 | Wife | — | Pennsylvania |
| 51 | Raymond Dunlap | 13 | Son | — | Pennsylvania |
| 52 | Charles Dunlap | 9 | Son | — | Pennsylvania |
| 53 | Cora Thompson | 77 | Aunt | — | Pennsylvania |
| 54 | Emmett Nichols | 40 | Head | Mechanic | New York |
| 55 | Agnes Nichols | 37 | Wife | — | Pennsylvania |
| 56 | James Nichols | 17 | Son | — | Pennsylvania |
| 57 | Ellen Nichols | 16 | Daughter | — | Pennsylvania |
| 58 | Robert Nichols | 13 | Son | — | Pennsylvania |
| 59 | Mary Nichols | 10 | Daughter | — | Pennsylvania |
| 60 | Clayton Pierce | 31 | Head | Laborer | Pennsylvania |
| 61 | Eva Pierce | 39 | Wife | — | Pennsylvania |
| 62 | Robert Pierce | 13 | Son | — | Pennsylvania |
| 63 | Walter Pierce | 1 | Son | — | Pennsylvania |
| 64 | Otto Keeps | 53 | Head | Laborer | Pennsylvania |
| 65 | Virginia Keeps | 54 | Wife | — | Pennsylvania |
| 66 | Ellen Keeps | 6 | Daughter | — | Pennsylvania |
| 67 | Janet Clinton | 88 | Head | — | Pennsylvania |
| 68 | Ella Montaign | 65 | Sister | House Work | Pennsylvania |
| 69 | Ida Shell | 58 | Sister | — | Pennsylvania |
| 70 | John Zawadzki | 58 | Head | Farmer | Poland |
| 71 | Mary Zawadzki | 48 | Wife | — | New Jersey |
| 72 | Pearl Zawadzki | 16 | Daughter | — | Pennsylvania |
| 73 | Elmer Zawadzki | 27 | Son | Laborer | New Jersey |
| 74 | Stella Zawadzki | 24 | Daughter-in-law | — | New Jersey |
| 75 | Alfred Geidler | 36 | Head | Clerk | Oklahoma |
| 76 | Lucile Geidler | 37 | Wife | — | Kansas |
| 77 | Jean Geidler | 3 | Daughter | — | Pennsylvania |
| 78 | Earl Nelson | 36 | Head | Inspector | Pennsylvania |
| 79 | Lacie Nelson | 33 | Wife | — | Pennsylvania |
| 80 | Richard Nelson | 13 | Son | — | Pennsylvania |
Pedigree Summary
Lawrence
Gen 1 · 3 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)