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Frank Alexander — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Frank Alexander across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 11-person household.
Age 11
b. ~1929
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Alexander |
| Given Name | Frank Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| 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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Celestine Alexander | Daughter | — | 13 | ~1927 |
| Frank Alexander | Son | — | 11 | ~1929 |
| Bernice Alexander | Daughter | — | 14 | ~1926 |
| Cecelia Alexander | Spouse | — | 36 | ~1904 |
| Matthew Alexander | Son | — | 9 | ~1931 |
| Dykie Alexander | Daughter | — | 7 | ~1933 |
| Casey Alexander | Son | — | 3 | ~1937 |
| Barbara Alexander | Daughter | — | 1 | ~1939 |
| Frank Alexander | Head | — | 37 | ~1903 |
| Musett Alexander | Daughter | — | 15 | ~1925 |
| Lucille Alexander | Daughter | — | 5 | ~1935 |
Census Appearances
1930
Cook, Illinois
Other, age 1
Cook, Illinois · implied b. ~1929 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Frank Jr. |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 11
Cook-County, Illinois · implied b. ~1929 — 11 household members
| Surname | Alexander |
| Given Name | Frank Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | No 6 |
| 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 Frank Alexander across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Frank Alexander
Son · 1940 · age 11 · b. ~1929 · Illinois
★ You are viewing this record
Sibling
Lucille Alexander
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Alexander
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Musett Alexander
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Alexander
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dykie Alexander
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Casey Alexander
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Celestine Alexander
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Matthew Alexander
Sibling · 1940 · age 9
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-t0627-00925-00269)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Casey Moore | 36 | Lodger | — | Georgia |
| 2 | Virgil Eliza Moore | 25 | Lodger | Mechanic Helper | Oklahoma |
| 3 | Frank Alexander | 37 | Head | Laborer | Mississippi |
| 4 | Cecelia Alexander | 36 | Wife | — | Mississippi |
| 5 | Musett Alexander | 15 | Daughter | — | Mississippi |
| 6 | Bernice Alexander | 14 | Daughter | — | Illinois |
| 7 | Celestine Alexander | 13 | Daughter | — | Mississippi |
| 8 | Frank Jr Alexander THIS PERSON | 11 | Son | — | Illinois |
| 9 | Matthew Alexander | 9 | Son | — | Illinois |
| 10 | Dykie Gale Alexander | 7 | Daughter | — | Illinois |
| 11 | Lucille Alexander | 5 | Daughter | — | Illinois |
| 12 | Casey Alexander | 3 | Son | — | Illinois |
| 13 | Barbara Alexander | 1 | Daughter | — | Illinois |
| 14 | Wm L Oxford | 42 | Head | Receptionist | New York |
| 15 | Lula Oxford | 49 | Wife | — | Kentucky |
| 16 | Charlene Caulder | 58 | Daughter | — | Kentucky |
| 17 | William Herring | 47 | Head | Waiter | Texas |
| 18 | Mamie Herring | 45 | Wife | Seamstress | Georgia |
| 19 | Thomas Shepherd | 47 | Lodger | Cab Driver | Louisiana |
| 20 | Clarence Williams | 33 | Head | Laborer | Mississippi |
| 21 | Lucy Williams | 24 | Wife | Maid | Mississippi |
| 22 | Floyd Mcghee | 31 | Lodger | — | Alabama |
| 23 | Earl Matthews | 13 | Lodger | — | Mississippi |
| 24 | Samuel Jackson | 25 | Lodger | Battery Maker | Mississippi |
| 25 | Troy Curry | None | Lodger | — | — |
| 26 | Malcolm Jones | 30 | Head | Garageman | Mississippi |
| 27 | Mabel Jones | 27 | Wife | — | Tennessee |
| 28 | Milton Robinson | 27 | Lodger | Seamstress | Mississippi |
| 29 | Dorothy Robinson | 10 | Lodger | — | Mississippi |
| 30 | Thomas Jr Morris | 34 | Lodger | Hustler | Mississippi |
| 31 | Drucella Morris | 23 | Lodger | Regmistress | Mississippi |
| 32 | Willie Allen | 24 | Lodger | Laborer | Tennessee |
| 33 | Ruby Allen | 22 | Lodger | — | Mississippi |
| 34 | Richard Kennedy | 50 | Head | Laborer | Mississippi |
| 35 | Fannie Kennedy | 39 | Wife | — | Mississippi |
| 36 | Moniava Turner | 68 | Lodger | — | Mississippi |
| 37 | Annie Porterfield | 86 | Aunt | — | Mississippi |
| 38 | Albert R West | 63 | Head | — | Kentucky |
| 39 | Loretta P West | 62 | Wife | — | Pennsylvania |
| 40 | Carrie Hugley | 20 | Lodger | Power Machine Operator | Ohio |
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)