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Henry Alexander — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Henry Alexander across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Alexander |
| Given Name | Henry L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1926 |
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 Henry | Age | Birth yr |
|---|---|---|---|---|
| Margaret Alexander | Spouse | — | 55 | ~1885 |
| Henry Alexander | Son | — | 14 | ~1926 |
| Robert Alexander | Son | — | 11 | ~1929 |
| Elliott Alexander | Head | — | 57 | ~1883 |
| Malcolm Alexander | Son | — | 11 | ~1929 |
| Thelma Alexander | Daughter | — | 20 | ~1920 |
| Howard Alexander | Son | — | 27 | ~1913 |
| Alverta Alexander | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 4
Allegheny, Pennsylvania · implied b. ~1926 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 14
Allegheny-County, Pennsylvania · implied b. ~1926 — 8 household members
| Surname | Alexander |
| Given Name | Henry L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| 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 Henry Alexander across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Henry Alexander
Son · 1940 · age 14 · b. ~1926 · Pennsylvania
★ You are viewing this record
Sibling
Alverta Alexander
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Alexander
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Alexander
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Alexander
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Malcolm Alexander
Sibling · 1940 · age 11
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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03660-00441)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elliott E. W. Alexander | 57 | Head | Clerk | S. Carolina |
| 2 | Margaret Alexander | 55 | Wife | — | Pennsylvania |
| 3 | Alverta E. Alexander | 16 | Daughter | — | Pennsylvania |
| 4 | Henry L. Alexander THIS PERSON | 14 | Son | — | Pennsylvania |
| 5 | Robert L. V. Alexander | 11 | Son | — | Pennsylvania |
| 6 | Malcolm K. Alexander | 11 | Son | — | Pennsylvania |
| 7 | Howard M. Alexander | 27 | Son | Porter | Pennsylvania |
| 8 | Thelma Alexander | 20 | Daughter | — | Pennsylvania |
| 9 | William Hawkins | 45 | Head | Waiter | Kentucky |
| 10 | Fannie Hawkins | 45 | Wife | — | Pennsylvania |
| 11 | George Price | 32 | Head | Laborer | Pennsylvania |
| 12 | Lula (X) Price | 38 | Wife | — | Virginia |
| 13 | Alice Walters | 25 | Lodger | Maid | S. Carolina |
| 14 | Vincent Brown | 25 | Lodger | Laborer | Pennsylvania |
| 15 | Florence Brown | 24 | Wife | — | New York |
| 16 | Alphonso Sangermano | 71 | Head | Stone Cutter | Italy |
| 17 | Assunta Sangermano | 63 | Wife | — | Italy |
| 18 | Armand Sangermano | 42 | Son | — | Italy |
| 19 | Catherine Jordan | 38 | Head | — | Pennsylvania |
| 20 | Thomas Jordan | 15 | Son | — | Pennsylvania |
| 21 | Lester Jordan | 13 | Son | — | Pennsylvania |
| 22 | Glenn Jordan | 11 | Son | — | Pennsylvania |
| 23 | Margaret Jordan | 10 | Daughter | — | Pennsylvania |
| 24 | James Jordan | 6 | Son | — | Pennsylvania |
| 25 | Catherine Coleman | 18 | Daughter | — | Pennsylvania |
| 26 | Helen Richards | 35 | Lodger | — | Pennsylvania |
| 27 | Julia Hill | 42 | Head | Laborer | New York |
| 28 | Harry The Mahon | 25 | Head | Storekeeper | Pennsylvania |
| 29 | Albert Casella | 21 | Head | Presser | Pennsylvania |
| 30 | Sue Casella | 20 | Wife | — | Pennsylvania |
| 31 | Thomas Casella | 1 | Son | — | Pennsylvania |
| 32 | Robert Casella | 0 | Son | — | Pennsylvania |
| 33 | Samuel Palmer | 27 | Head | Laborer | Pennsylvania |
| 34 | Edith Palmer | 25 | Wife | — | Pennsylvania |
| 35 | Grace H. Hopkins | 54 | Head | Domestic Worker | Pennsylvania |
| 36 | Woodrow Lilith | 29 | Head | — | Pennsylvania |
| 37 | Margaret Lilith | 22 | Wife | — | Pennsylvania |
| 38 | Samuel B. Gaines | 60 | Head | Janitor | Virginia |
| 39 | Samuel B. (X) Gaines | 39 | Lodger | Chauffeur | Pennsylvania |
| 40 | Marie L. Hutchinson | 34 | Lodger | — | 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)