CA
Charles Alexander — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Charles Alexander across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Thomas & Elizabeth — first a head (b.~1906), then head of a 4-person household.
Age 34
b. ~1906
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Alexander |
| Given Name | Charles E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Swissvale Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Heater |
| Industry | Steel mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 446 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Heater |
| Township / Ward | Swissvale Borough |
| Est. Birth Year | ~1906 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Lois Alexander | Daughter | — | 2 | ~1938 |
| Donna Alexander | Daughter | — | 1 | ~1939 |
| Charles Alexander | Head | — | 34 | ~1906 |
| Irene Alexander | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Charles E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | England |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 24
Allegheny, Pennsylvania · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Charles E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | England |
| Mother's Birthplace | Pennsylvania |
| Occupation | Conductor |
| Industry | Steel Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 34
Allegheny-County, Pennsylvania · implied b. ~1906 — 4 household members
| Surname | Alexander |
| Given Name | Charles E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Swissvale Borough |
| 1935 Residence (County) | Allegheny |
| Occupation | Heater |
| Industry | Steel mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 446 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| 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 Charles Alexander across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Alexander (~0.92 confidence) and mother Elizabeth Alexander (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Alexander
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Alexander
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Charles Alexander
Head · 1940 · age 34 · b. ~1906 · Pennsylvania
★ You are viewing this record
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-t0627-03418-00585)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Davis | 51 | Head | Machinist | Ohio |
| 2 | Pearl O. Davis | 46 | Wife | — | Ohio |
| 3 | Evan Davis | 26 | Son | Insurance Clerk | Ohio |
| 4 | Jack Davis | 20 | Son | Laborer | Ohio |
| 5 | Philip Davis | 18 | Son | Clerk | Ohio |
| 6 | James Davis | 9 | Son | — | Pennsylvania |
| 7 | William Farmer | 46 | Head | Accountant | Pennsylvania |
| 8 | Marie D. Farmer | 45 | Wife | — | Pennsylvania |
| 9 | William L. Farmer | 18 | Son | — | Pennsylvania |
| 10 | Mary Alice Farmer | 15 | Daughter | — | Pennsylvania |
| 11 | Robert Mcminn | 40 | Head | Timekeeper | Pennsylvania |
| 12 | Dorothy O. Mcminn | 32 | Wife | — | Pennsylvania |
| 13 | Robert Jr. Mcminn | 9 | Son | — | Pennsylvania |
| 14 | Janet Mcminn | 7 | Daughter | — | Pennsylvania |
| 15 | Walter O. Sloan | 32 | Head | Clerk | Pennsylvania |
| 16 | Edith Sloan | 25 | Wife | — | Pennsylvania |
| 17 | Robert Sloan | 2 | Son | — | Pennsylvania |
| 18 | Ambrose Shaughnessy | 44 | Head | Supervisor | Pennsylvania |
| 19 | Ida Mary O. Shaughnessy | 42 | Wife | — | Maryland |
| 20 | Mary A. Shaughnessy | 13 | Daughter | — | Pennsylvania |
| 21 | Josephine Shaughnessy | 12 | Daughter | — | Pennsylvania |
| 22 | William Shaughnessy | 10 | Son | — | Pennsylvania |
| 23 | Thomas Shaughnessy | 8 | Son | — | Pennsylvania |
| 24 | Charles E. Alexander THIS PERSON | 34 | Head | Heater | Pennsylvania |
| 25 | Irene O. Alexander | 29 | Wife | — | Pennsylvania |
| 26 | Lois Ann Alexander | 2 | Daughter | — | Pennsylvania |
| 27 | Donna Grace Alexander | 1 | Daughter | — | Pennsylvania |
| 28 | Andrew Jr. Cohill | 47 | Head | Chipping Clerk | Virginia |
| 29 | Stella O. Cohill | 44 | Wife | — | Pennsylvania |
| 30 | Andrew Jr. Cohill | 14 | Son | — | Pennsylvania |
| 31 | Patricia Cohill | 11 | Daughter | — | Pennsylvania |
| 32 | Gertrude Cohill | 9 | Daughter | — | Pennsylvania |
| 33 | Mary Jane Cohill | 7 | Daughter | — | Pennsylvania |
| 34 | Susan Cohill | 5 | Daughter | — | Pennsylvania |
| 35 | Irene Cohill | 3 | Daughter | — | Pennsylvania |
| 36 | Louisa Cohill | 1 | Daughter | — | Pennsylvania |
| 37 | Gertrude Reilly | 44 | Sister-in-law | Clerical Work | Pennsylvania |
| 38 | Alexander Downey | 32 | Head | Manager | Pennsylvania |
| 39 | Ruth O. Downey | 31 | Wife | — | Pennsylvania |
| 40 | Kenneth Downey | 5 | Son | — | Pennsylvania |
Pedigree Summary
Charles
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)