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Lois Hall — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Lois Hall across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Hall |
| Given Name | Lois |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1928 |
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 Lois | Age | Birth yr |
|---|---|---|---|---|
| Mary Hall | Spouse | — | 38 | ~1902 |
| Lois Hall | Daughter | — | 12 | ~1928 |
| Julia Hall | Daughter | — | 15 | ~1925 |
| Samuel Hall | Son | — | 6 | ~1934 |
| Betty Hall | Daughter | — | 8 | ~1932 |
| John Hall | Head | — | 40 | ~1900 |
| Agnes Hall | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 2
Allegheny, Pennsylvania · implied b. ~1928 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hall |
| Given Name | Lois Violet |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| 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
Daughter, age 12
Allegheny-County, Pennsylvania · implied b. ~1928 — 7 household members
| Surname | Hall |
| Given Name | Lois |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Highest Grade | 8 |
| 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 Lois Hall across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lois Hall
Daughter · 1940 · age 12 · b. ~1928 · Pennsylvania
★ You are viewing this record
Sibling
Agnes Hall
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Hall
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Hall
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Hall
Sibling · 1940 · age 6
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-t0627-03673-00881)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Hammer | 53 | Head | Salesman | Pennsylvania |
| 2 | Elizabeth Hammer | 52 | Wife | — | Pennsylvania |
| 3 | John Hammer | 30 | Son | Salesman | Pennsylvania |
| 4 | Harry Hammer | 20 | Son | Clerk | Pennsylvania |
| 5 | Chester Johnson | 40 | Head | Driver | Alabama |
| 6 | Viola Johnson | 38 | Wife | Maid | Alabama |
| 7 | Willie Mae Gitten | 26 | Lodger | — | Alabama |
| 8 | Coleman Gaston | 30 | Lodger | Laborer | Alabama |
| 9 | William Jenkins | 47 | Head | Laborer | Alabama |
| 10 | Bonnie Jenkins | 50 | Wife | — | S. Carolina |
| 11 | Jacob Jenkins | 18 | Son | New Worker | Pennsylvania |
| 12 | Joseph Jenkins | 18 | Son | New Worker | Pennsylvania |
| 13 | Dorothy Jenkins | 15 | Daughter | — | Pennsylvania |
| 14 | Dock Chapman | 53 | Lodger | Laborer | Pennsylvania |
| 15 | Sarah Chapman | 54 | Lodger | — | Pennsylvania |
| 16 | Walter Hill | 46 | Lodger | — | Maryland |
| 17 | Mamie Murphy | 58 | Head | Maid | Virginia |
| 18 | Alfred Stahlman | 49 | Head | Fireman | England |
| 19 | Nelly Stahlman | 49 | Wife | — | Scotland |
| 20 | Melvin Stahlman | 23 | Son | — | Pennsylvania |
| 21 | David Stahlman | 10 | Son | — | Pennsylvania |
| 22 | Augusta Hagan | 86 | Mother | — | Pennsylvania |
| 23 | Charlie George | 35 | Head | Labor | Pennsylvania |
| 24 | Almeda George | 33 | Wife | Maid | Pennsylvania |
| 25 | John Smith | 28 | Head | — | Georgia |
| 26 | Mary Smith | 18 | Wife | — | Georgia |
| 27 | Ella Smith | 2 | Daughter | — | Pennsylvania |
| 28 | Ethel Smith | 1 | Daughter | — | Pennsylvania |
| 29 | John Hall | 40 | Head | Laborer | Florida |
| 30 | Mary Hall | 38 | Wife | Maid | Florida |
| 31 | Julia Hall | 15 | Daughter | — | Pennsylvania |
| 32 | Agnes Hall | 13 | Daughter | — | Pennsylvania |
| 33 | Lois Hall THIS PERSON | 12 | Daughter | — | Pennsylvania |
| 34 | Betty Hall | 8 | Daughter | — | Pennsylvania |
| 35 | Samuel Hall | 6 | Son | — | Pennsylvania |
| 36 | Agnes Muller | 49 | Head | — | Ohio |
| 37 | Beulah Muller | 25 | Daughter | Maid | Ohio |
| 38 | Sarah Muller | 18 | Daughter | Maid | Missouri |
| 39 | Clarence Muller | 10 | Son | — | Pennsylvania |
| 40 | Theodore Muller | 5 | Son | — | 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)