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Effie Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Effie Brown across the 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1908), then head of a 8-person household.
Age 32
b. ~1908
Female
Spouse
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Brown |
| Given Name | Effie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 32 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Township / Ward | Chester |
| Est. Birth Year | ~1908 |
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 1940 census.
| Name | Relation to head | Relative to Effie | Age | Birth yr |
|---|---|---|---|---|
| Thomas Brown | Son | — | 9 | ~1931 |
| William Brown | Son | — | 6 | ~1934 |
| Vera Brown | Daughter | — | 8 | ~1932 |
| James Brown | Head | — | 35 | ~1905 |
| Jessie Brown | Daughter | — | 2 | ~1938 |
| Adelia Brown | Daughter | — | 7 | ~1933 |
| Effie Brown | Spouse | — | 32 | ~1908 |
| Hattie Brown | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Delaware, Pennsylvania
Spouse, age 21
Delaware, Pennsylvania · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Effie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 21 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Delaware-County, Pennsylvania
Spouse, age 32
Delaware-County, Pennsylvania · implied b. ~1908 — 8 household members
| Surname | Brown |
| Given Name | Effie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 32 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Chester |
| 1935 Residence (County) | Delaware |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Effie Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Effie Brown
Spouse · 1940 · age 32 · b. ~1908 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03489-00034)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Nicholas Jacobs | 21 | Son | Attendant | New Jersey |
| 42 | Ralph Jacobs | 19 | Son | — | New Jersey |
| 43 | Mary Jacobs | 16 | Daughter | — | New Jersey |
| 44 | Frank Jr Jacobs | 15 | Son | — | New Jersey |
| 45 | Anna Jacobs | 14 | Daughter | — | New Jersey |
| 46 | Josephine Jacobs | 11 | Daughter | — | Pennsylvania |
| 47 | Nere Endo Blick | 56 | Boarder | — | Pennsylvania |
| 48 | Jeff Ayars | 48 | Head | Laborer | Georgia |
| 49 | Sarah Ayars | 43 | Wife | Cook | Georgia |
| 50 | John Ayars | 13 | Son | — | Pennsylvania |
| 51 | Will Jackson | 40 | Head | Laborer | Georgia |
| 52 | Mae Jackson | 36 | Wife | Waitress | Maryland |
| 53 | Watson Jackson | 63 | Head | Nr W.P.A | Virginia |
| 54 | George Robinson | 38 | Head | Laborer | Virginia |
| 55 | Florence Robinson | 40 | Wife | Maid | Maryland |
| 56 | Lizzie Taylor | 73 | Head | — | Maryland |
| 57 | Mary Arrington | 40 | Daughter | Waitress | Pennsylvania |
| 58 | William Arrington | 10 | Son | — | Pennsylvania |
| 59 | Eva Brises | 52 | Daughter | — | Maryland |
| 60 | Anderson Lohens | 52 | Head | Laborer | Maryland |
| 61 | Adline Lohens | 46 | Wife | — | Maryland |
| 62 | Wesley Lohens | 19 | Son | — | Pennsylvania |
| 63 | Ida Lohens | 17 | Daughter | — | Pennsylvania |
| 64 | Louvenia Lohens | 15 | Daughter | — | Pennsylvania |
| 65 | Wendell Lohens | 13 | Son | — | Pennsylvania |
| 66 | Nathan Lohens | 11 | Son | — | Pennsylvania |
| 67 | Dale Lohens | 6 | Son | — | Pennsylvania |
| 68 | Russell Lohens | 2 | Son | — | Pennsylvania |
| 69 | James Brown | 35 | Head | Laborer | Virginia |
| 70 | Effie Brown THIS PERSON | 32 | Wife | — | South Carolina |
| 71 | Hattie Brown | 10 | Daughter | — | Pennsylvania |
| 72 | Thomas Brown | 9 | Son | — | Pennsylvania |
| 73 | Vera Brown | 8 | Daughter | — | Pennsylvania |
| 74 | William Brown | 6 | Son | — | Pennsylvania |
| 75 | Jessie Brown | 2 | Daughter | — | Pennsylvania |
| 76 | Adelia Brown | 7 | Daughter | — | Pennsylvania |
| 77 | Mary Brown | 46 | Head | Laundress | Virginia |
| 78 | James Spencer | 44 | Roomer | Steel Mill | Virginia |
| 79 | Leora Randell | 78 | Mother | — | Virginia |
| 80 | Mary Wilson | 37 | Head | Relief | Florida |
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)