HB
Harvey Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Harvey Brown across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Brown |
| Given Name | Harvey |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1929 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harvey | Age | Birth yr |
|---|---|---|---|---|
| Jerry Brown | Son | — | 7 | ~1933 |
| Blanche Mangum | Other | — | 45 | ~1895 |
| Thelma Brown | Head | — | 28 | ~1912 |
| Harvey Brown | Son | — | 11 | ~1929 |
| Donald Brown | Son | — | 1 | ~1939 |
| Maurice Brown | Daughter | — | 10 | ~1930 |
| Elvin Brown | Son | — | 3 | ~1937 |
Census Appearances
1930
Cook, Illinois
Son, age
Cook, Illinois · implied b. ~1930 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Harvey |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Tennessee |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 11
Cook-County, Illinois · implied b. ~1929 — 7 household members
| Surname | Brown |
| Given Name | Harvey |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Harvey Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harvey Brown
Son · 1940 · age 11 · b. ~1929 · Illinois
★ You are viewing this record
Sibling
Elvin Brown
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Brown
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maurice Brown
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerry Brown
Sibling · 1940 · age 7
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00959-00400)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles High | 5 | Son | — | Mississippi |
| 42 | Henry Burdwell|Burdwill | 20 | Lodger | Laborer | Mississippi |
| 43 | George W Taylor | 69 | Head | — | Georgia |
| 44 | Permelia Taylor | 52 | Wife | — | Arkansas |
| 45 | Huriah Bradley | 44 | Sister in law | Laundress | Arkansas |
| 46 | Mildred Giles | 35 | Lodger | Maid | Illinois |
| 47 | Lolares Perry | 6 | Lodger | — | Illinois |
| 48 | Eliza Morgan | 72 | Head | — | Indiana |
| 49 | Charles Morris | 42 | Head | Butcher | Georgia |
| 50 | Georgia Morris | 39 | Wife | Clerk | Georgia |
| 51 | Charlie Mae Morris | 19 | Daughter | — | Georgia |
| 52 | Mattie Scarbrough | 53 | Head | — | Mississippi |
| 53 | Jessie Rush | 35 | Daughter | Maid | Mississippi |
| 54 | Iraon Rush | 17 | Grand Son | — | Missouri |
| 55 | Jessie Rush | 15 | Grand Daughter | — | Missouri |
| 56 | Belle Flamings | 60 | Head | Laundress | Georgia |
| 57 | Walter Gans | 52 | Nephew | Laborer | Georgia |
| 58 | Howard Higgins | 35 | Head | Truck Driver | Illinois |
| 59 | Ruby Higgins | 30 | Wife | — | Illinois |
| 60 | George Higgins | 9 | Son | — | Illinois |
| 61 | Barbara Higgins | 8 | Daughter | — | Illinois |
| 62 | Adelaide Jr Mcpherson | 24 | Boarder in law | Steam Fitter | Illinois |
| 63 | Randolph Mcpherson | 31 | Head | Surveyor | Illinois |
| 64 | Madra Mcpherson | 24 | Wife | — | Louisiana |
| 65 | Thelma Brown | 28 | Head | Entertainer | Tennessee |
| 66 | Harvey Brown THIS PERSON | 11 | Son | — | Illinois |
| 67 | Maurice Brown | 10 | Daughter | — | Illinois |
| 68 | Jerry Brown | 7 | Son | — | Illinois |
| 69 | Elvin Brown | 3 | Son | — | Illinois |
| 70 | Donald Brown | 1 | Son | — | Illinois |
| 71 | Blanche Mangum | 45 | Aunt | — | Tennessee |
| 72 | Julia Burns | 49 | Head | Laborer | Alabama |
| 73 | Estella Burns | 34 | Wife | Laundress | Mississippi |
| 74 | Arthur Burns | 17 | Son | — | Mississippi |
| 75 | Jesse Burns | 15 | Son | — | Mississippi |
| 76 | Bernie White | 13 | Lodger | — | Louisiana |
| 77 | Vera Powell | 25 | Head | Sorter | Mississippi |
| 78 | Thomas Rhodes | 40 | Lodger | Laborer | Mississippi |
| 79 | Jasper Orr | 55 | Head | — | Alabama |
| 80 | Nora Orr | 49 | Wife | — | Alabama |
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)