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James Simms — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this James Simms across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Simms |
| Given Name | James Jr |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Gen Hauling |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 420 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Truck Driver |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1915 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Caroline Schafer | Other | — | 86 | ~1854 |
| Lillian Simms | Spouse | — | 47 | ~1893 |
| James Simms | Head | — | 50 | ~1890 |
| James Simms | Son | — | 25 | ~1915 |
| Harold Simms | Son | — | 22 | ~1918 |
| Mary Simms | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 15
Allegheny, Pennsylvania · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sims |
| Given Name | James J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 25
Allegheny-County, Pennsylvania · implied b. ~1915 — 6 household members
| Surname | Simms |
| Given Name | James Jr |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Occupation | Truck Driver |
| Industry | Gen Hauling |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 420 |
| Highest Grade | H-2 |
| 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 James Simms across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Simms
Son · 1940 · age 25 · b. ~1915 · Pennsylvania
★ You are viewing this record
Sibling
Mary Simms
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Simms
Sibling · 1940 · age 22
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-t0627-03670-00120)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clarissa Coutz | 58 | Cousin | — | West Virginia |
| 42 | Albert Jessup | 44 | Brother-in-law | Laborer | Pennsylvania |
| 43 | James Simms | 50 | Head | Laborer | Pennsylvania |
| 44 | Lillian Simms | 47 | Wife | — | Pennsylvania |
| 45 | James Jr Simms THIS PERSON | 25 | son | Truck Driver | Pennsylvania |
| 46 | Harold Simms | 22 | son | Truck Driver | Pennsylvania |
| 47 | Mary Simms | 16 | daughter | — | Pennsylvania |
| 48 | Caroline Schafer | 86 | Mother-in-law | — | Germany |
| 49 | Fredrick Vollmer | 78 | Head | — | Germany |
| 50 | Minnie C Vollmer | 74 | Wife | — | Pennsylvania |
| 51 | Lillian Wolfmron | Wolfmorn | 45 | daughter | — | Pennsylvania |
| 52 | Charlotte Wolfmron | Wolfmorn | 23 | grand daughter | — | Pennsylvania |
| 53 | George H Rosemeyer | 65 | Head | Clerk | Pennsylvania |
| 54 | Mary A Rosemeyer | 57 | Wife | Barberess | Pennsylvania |
| 55 | Mary P Rosemeyer | 16 | daughter | — | Pennsylvania |
| 56 | George L Rosemeyer | 34 | Head | Clerk | Pennsylvania |
| 57 | Emma M Rosemeyer | 32 | Wife | Patrolman | Pennsylvania |
| 58 | George Jr Rosemeyer | 3 | son | — | Pennsylvania |
| 59 | Oliver Boufford | 52 | Head | Foreman | Canada-French |
| 60 | Eva Boufford | 43 | Wife | — | Minnesota |
| 61 | Charles Adair | 25 | Son-in-law | Gen. Handyman | Illinois |
| 62 | Genevieve Adair | 21 | daughter | — | Minnesota |
| 63 | Charles R. Adair | 1 | grandson | — | Pennsylvania |
| 64 | James V Gambone | 42 | Head | Accountant | Italy |
| 65 | Isabel Gambone | 40 | Wife | — | Alabama |
| 66 | Virginia Gambone | 23 | daughter | Salesgirl | Pennsylvania |
| 67 | Robert Gambone | 21 | son | Truck Driver | Pennsylvania |
| 68 | James Gambone | 19 | son | Clerk | Pennsylvania |
| 69 | Edward Gambone | 16 | son | Clerk | Pennsylvania |
| 70 | William Gambone | 13 | son | — | Pennsylvania |
| 71 | Donald Gambone | 7 | son | — | Pennsylvania |
| 72 | Richard Gambone | 4 | son | — | Pennsylvania |
| 73 | Joanne Gambone | 1 | daughter | — | Pennsylvania |
| 74 | George Douglas | 55 | Head | Janitor | Tennessee |
| 75 | Sophronia Douglas | 50 | Wife | — | Tennessee |
| 76 | William Douglas | 15 | Son | — | Pennsylvania |
| 77 | Ellsworth Clinton | 49 | Head | Truck Driver | Pennsylvania |
| 78 | Leonora Clinton | 42 | Wife | Saleslady | Pennsylvania |
| 79 | June Kinsel | 25 | daughter | — | Pennsylvania |
| 80 | Fred Vera | None | Black | — | 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)