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John Sims — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Sims across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1906), then head of a 6-person household.
Age 34
b. ~1906
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Sims |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Clairton |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | laborer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Jefferson Twp |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Sims | Head | — | 34 | ~1906 |
| Betty Sims | Daughter | — | 13 | ~1927 |
| Edna Sims | Spouse | — | 33 | ~1907 |
| Mary Sims | Daughter | — | 5 | ~1935 |
| Melva Sims | Daughter | — | 10 | ~1930 |
| John Sims | Son | — | 7 | ~1933 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 13
Allegheny, Pennsylvania · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sims |
| Given Name | John |
| Relationship to Head | Brotherinlaw |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 23
Allegheny, Pennsylvania · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sims |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 19 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Millwright |
| Industry | Coke Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 33.00 |
| Radio Set | R |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 34
Allegheny-County, Pennsylvania · implied b. ~1906 — 6 household members
| Surname | Sims |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Clairton |
| 1935 Residence (County) | Allegheny |
| Occupation | laborer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | No 8 |
| 1935 Residence | Pennsylvania |
| 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 John Sims across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Sims
Head · 1940 · age 34 · b. ~1906 · Pennsylvania
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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 — 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-t0627-03406-00815)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Berlyn Lewis | 14 | Son | — | Pennsylvania |
| 2 | Benjamin Lewis | 62 | Head | Miner | Pennsylvania |
| 3 | Anna Lewis | 49 | Wife | — | Pennsylvania |
| 4 | Gertrude Lewis | 22 | daughter | — | Pennsylvania |
| 5 | John Sims THIS PERSON | 34 | Head | Laborer | Pennsylvania |
| 6 | Edna Sims | 33 | wife | — | Pennsylvania |
| 7 | Betty Sims | 13 | daughter | — | Pennsylvania |
| 8 | Melva Sims | 10 | daughter | — | Pennsylvania |
| 9 | John Jr Sims | 7 | son | — | Pennsylvania |
| 10 | Mary Ann Sims | 5 | daughter | — | Pennsylvania |
| 11 | Jennings Wagner | 39 | Head | Labour | Pennsylvania |
| 12 | Mary Ellen Wagner | 36 | Wife | — | Pennsylvania |
| 13 | Grace Wagner | 18 | daughter | — | Pennsylvania |
| 14 | William Wagner | 17 | son | — | Pennsylvania |
| 15 | Ruth Wagner | 15 | daughter | — | Pennsylvania |
| 16 | Edward Wagner | 12 | son | — | Pennsylvania |
| 17 | Florence Wagner | 10 | daughter | — | Pennsylvania |
| 18 | Mary Lou Wagner | 4 | daughter | — | Pennsylvania |
| 19 | Shirley Wagner | 2 | daughter | — | Pennsylvania |
| 20 | Phyllis Wagner | 0 | daughter | — | Pennsylvania |
| 21 | Harry Greenwald | 44 | Head | Brick Layer | Pennsylvania |
| 22 | Ethel Greenwald | 42 | Wife | — | Pennsylvania |
| 23 | Harry Jr Greenwald | 19 | son | Labour | Pennsylvania |
| 24 | Ross Greenwald | 16 | son | — | Pennsylvania |
| 25 | John Greenwald | 10 | son | — | Pennsylvania |
| 26 | David H Graham | 72 | Head | Health Officer | Pennsylvania |
| 27 | Anna L Graham | 69 | Wife | — | Pennsylvania |
| 28 | Herbert F Graham | 30 | Step-son | Laborer | Pennsylvania |
| 29 | Paul B Graham | 46 | Head | Maintainer | Pennsylvania |
| 30 | Margaret T Graham | 42 | Wife | — | Pennsylvania |
| 31 | Paul D Graham | 22 | son | Laborer | Pennsylvania |
| 32 | Margaret L Graham | 20 | daughter | Book Keeper | Pennsylvania |
| 33 | Eugene D Graham | 17 | son | — | Pennsylvania |
| 34 | Kathryn Graham | 11 | daughter | — | Pennsylvania |
| 35 | Anna J Graham | 6 | daughter | — | Pennsylvania |
| 36 | Joseph Decker | 71 | Head | — | Pennsylvania |
| 37 | Martha Decker | 65 | Wife | — | Pennsylvania |
| 38 | Edward A Decker | 42 | son | Laborer | Pennsylvania |
| 39 | Lloyd Decker | 39 | son | Laborer | Pennsylvania |
| 40 | Elizabeth Decker | 35 | daughter | — | Pennsylvania |
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)