WA
William Alexander — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this William Alexander across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 7-person household.
Age 59
b. ~1881
Male
Head
Born: Louisiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Alexander |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Steam Keeper |
| Industry | Railroad shops |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1250 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Steam Keeper |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1881 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Alexander | Daughter | — | 10 | ~1930 |
| Sally Alexander | Daughter | — | 12 | ~1928 |
| Penny Alexander | Daughter | — | 7 | ~1933 |
| Patricia Alexander | Daughter | — | 9 | ~1931 |
| Nancy Alexander | Daughter | — | 5 | ~1935 |
| William Alexander | Head | — | 59 | ~1881 |
| Bessie Alexander | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Jefferson, Kentucky
Head, age 45
Jefferson, Kentucky · implied b. ~1875
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Alexander |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 45 |
| Marital Status | Widowed |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Janitor |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
Jefferson, Kentucky
Other, age 53
Jefferson, Kentucky · implied b. ~1877 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | William |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | Black |
| Age | 53 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Janitor |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Jefferson-County, Kentucky
Head, age 59
Jefferson-County, Kentucky · implied b. ~1881 — 7 household members
| Surname | Alexander |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Occupation | Steam Keeper |
| Industry | Railroad shops |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1250 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 William Alexander across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Alexander
Head · 1940 · age 59 · b. ~1881 · Kentucky
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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 — Jefferson-County, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01372-00240)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter Griffin | 45 | Head | Molder | Mississippi |
| 2 | Mary Lou Griffin | 30 | Wife | — | Tennessee |
| 3 | Mary E. Griffin | 15 | Daughter | — | Kentucky |
| 4 | Every Lee Griffin | 13 | Son | — | Kentucky |
| 5 | Ernest Griffin | 11 | Son | — | Kentucky |
| 6 | Ransom Stanley | 64 | Head | — | Alabama |
| 7 | Emmie Stanley | 55 | Wife | — | Alabama |
| 8 | Willie Mae Stanley | 39 | Daughter | — | Alabama |
| 9 | Mildred Stanley | 25 | Daughter | Laundress | Alabama |
| 10 | Frank Robinson | 40 | Head | Laborer | Kentucky |
| 11 | Frances Robinson | 20 | Daughter | — | Kentucky |
| 12 | Margie Robinson | 18 | Daughter | — | Kentucky |
| 13 | Jane Lay | 15 | Daughter | — | Kentucky |
| 14 | William Alexander THIS PERSON | 59 | Head | Steam Keeper | Louisiana |
| 15 | Bessie Alexander | 39 | Wife | Maid | Kentucky |
| 16 | Sally Alexander | 12 | Daughter | — | Kentucky |
| 17 | Elizabeth Alexander | 10 | Daughter | — | Kentucky |
| 18 | Patricia Alexander | 9 | Daughter | — | Kentucky |
| 19 | Penny Alexander | 7 | Daughter | — | Kentucky |
| 20 | Nancy Alexander | 5 | Daughter | — | Kentucky |
| 21 | Deck Hardesty | 71 | Head | — | Kentucky |
| 22 | Alice Hardesty | 45 | Wife | Maid | Kentucky |
| 23 | William Hockett | 59 | Head | Sewer Cleaner | Kentucky |
| 24 | Elnora Hockett | 48 | Wife | — | Kentucky |
| 25 | Clint Lawson | 38 | Head | Laborer | Georgia |
| 26 | Mattie Lawson | 37 | Wife | — | Tennessee |
| 27 | Julius Barr | 42 | Head | Kennel Worker | North Carolina |
| 28 | Loma Barr | 39 | Wife | — | Alabama |
| 29 | Maggie Walls | 43 | Head | Cook And Maid | Mississippi |
| 30 | Lena Walls | 20 | Daughter | — | Mississippi |
| 31 | Louis Foster | 5 | Boarder | — | Kentucky |
| 32 | Everett Foley | 33 | Head | Chauffeur | Kentucky |
| 33 | Mary Foley | 35 | Wife | Maid | Kentucky |
| 34 | Willie Foley | 12 | Son | — | Kentucky |
| 35 | Juanita Foley | 10 | Daughter | — | Kentucky |
| 36 | Delores Foley | 8 | Daughter | — | Kentucky |
| 37 | Everett Jr Foley | 6 | Son | — | Kentucky |
| 38 | Shirley Ann Foley | 5 | Daughter | — | Kentucky |
| 39 | Agnes Elery | 21 | Lodger | — | Kentucky |
| 40 | Mary Christine Elery | 0 | Lodger's Daughter | — | Kentucky |
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)