ID
Isaac Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lackawanna-County, Pennsylvania
Our Model Tree links this Isaac Davis across the 1920, 1930 and 1940 US Censuses in Lackawanna-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 4-person household.
Age 60
b. ~1880
Male
Head
Born: Wales
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lackawanna-County, Pennsylvania |
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Blakely |
| 1935 Residence (County) | Lackawanna |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | un-employed |
| Income (1939) | 500 |
| Highest Grade | No 3 |
| 1935 Residence | Same house |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
| Occupation | Un-Employed |
| Township / Ward | Blakely |
| Est. Birth Year | ~1880 |
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 Isaac | Age | Birth yr |
|---|---|---|---|---|
| Isaac Davis | Head | — | 60 | ~1880 |
| Lewis Davis | Son | — | 21 | ~1919 |
| Elizabeth Davis | Spouse | — | 55 | ~1885 |
| Lois Davis | Daughter | — | 17 | ~1923 |
Census Appearances
1920
Lackawanna, Pennsylvania
Head, age 41
Lackawanna, Pennsylvania · implied b. ~1879 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Isaac J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1891 |
| Naturalization Status | Un |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Stableman |
| Industry | Silk Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Home Owned/Rented | R |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1930
Lackawanna, Pennsylvania
Head, age 50
Lackawanna, Pennsylvania · implied b. ~1880 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Wales |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Age at First Marriage | 27 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | Laborer |
| Industry | Coal Mines |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 20 |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1940
Lackawanna-County, Pennsylvania
Head, age 60
Lackawanna-County, Pennsylvania · implied b. ~1880 — 4 household members
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Wales |
| 1935 Residence (City) | Blakely |
| 1935 Residence (County) | Lackawanna |
| Naturalization Status | Naturalized |
| Occupation | un-employed |
| Income (1939) | 500 |
| Highest Grade | No 3 |
| 1935 Residence | Same house |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
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 Isaac Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Isaac Davis
Head · 1940 · age 60 · b. ~1880 · 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 — Lackawanna-County, Pennsylvania
Open full size
1940 US Federal Census — Lackawanna-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03522-00384)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Samuel Edwards | 28 | Head | Sick Feeder | Penna |
| 42 | Helene Edwards | 24 | Wife | Housewife | Penna |
| 43 | Joan Edwards | 4 | Daughter | — | Penna |
| 44 | David L. Thomas | 66 | Head | Un-Employed | Wales |
| 45 | Mary Thomas | 62 | Wife | Housewife | Wales |
| 46 | Thomas Harley | 65 | Head | Company Man | Penna |
| 47 | Margaret Harley | 63 | Wife | Housework | Wales |
| 48 | Thomas Harley | 25 | Son | Salesman | Penna |
| 49 | Herbert Harley | 17 | Son | Student | Penna |
| 50 | Francis Allison | 35 | Head | Laborer | Penna |
| 51 | Sarah Allison | 35 | Wife | Housewife | Penna |
| 52 | Jane Allison | 11 | Daughter | — | Penna |
| 53 | Francis Allison | 9 | Son | — | Penna |
| 54 | James Allison | 8 | Son | — | Penna |
| 55 | Isabel Allison | 6 | Daughter | — | Penna |
| 56 | Sarah Allison | 4 | Daughter | — | Penna |
| 57 | Tommy Allison | 3 | Son | — | Penna |
| 58 | Isaac Davis THIS PERSON | 60 | Head | Un-Employed | Wales |
| 59 | Elizabeth Davis | 55 | Wife | Housewife | Penna |
| 60 | Lois Davis | 17 | Daughter | — | Penna |
| 61 | Lewis Davis | 21 | Son | Rope Rider | Penna |
| 62 | William Harris | 68 | Head | Company Man | Wales |
| 63 | Annie J. Harris | 68 | Wife | Housewife | Wales |
| 64 | Arja Harris | 44 | Son | Un-Employed | Penna |
| 65 | Raymond Harris | 38 | Son | Laborer | Penna |
| 66 | Betty Harris | 21 | Daughter | Housekeeper | New York |
| 67 | Betty Ann Harris | 3 | Granddaughter | — | Penna |
| 68 | William Pritchard | 56 | Head | Laborer | Penna |
| 69 | Alice Pritchard | 52 | Wife | Housewife | England |
| 70 | Ruth Pritchard | 22 | Daughter | Un-Employed | Penna |
| 71 | Thomas Harris | 38 | Head | Insurance | Penna |
| 72 | Elizabeth Harris | 32 | Wife | Housewife | Penna |
| 73 | William Harris | 7 | Son | — | Penna |
| 74 | Robert Harris | 5 | Son | — | Penna |
| 75 | David Harris | 3 | Son | — | Penna |
| 76 | Thomas Johnson | 53 | Head | Fire Boss | England |
| 77 | Sarah Johnson | 48 | Wife | Housewife | Wales |
| 78 | John W. Johnson | 22 | Son | Student | Wales |
| 79 | James C. Johnson | 16 | Son | Student | Wales |
| 80 | Charles Rouse | 49 | Head | Laborer | Penna |
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)