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Leonard Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Armstrong-County, Pennsylvania
Our Model Tree links this Leonard Davis across the 1930 and 1940 US Censuses in Armstrong-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Armstrong-County, Pennsylvania |
| Surname | Davis |
| Given Name | Leonard W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (County) | Armstrong |
| Additional Details | |
| Highest Grade | No 3 |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | North Apollo |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Leonard | Age | Birth yr |
|---|---|---|---|---|
| Lorain Davis | Daughter | — | 9 | ~1931 |
| Arlene Davis | Daughter | — | 7 | ~1933 |
| Leonard Davis | Son | — | 12 | ~1928 |
| Delores Davis | Daughter | — | 4 | ~1936 |
| Elizabeth Davis | Spouse | — | 40 | ~1900 |
| Samuel Davis | Head | — | 40 | ~1900 |
| Donald Davis | Son | — | 17 | ~1923 |
| Eugene Davis | Son | — | 18 | ~1922 |
| Carl Davis | Son | — | 1 | ~1939 |
Census Appearances
1930
Armstrong, Pennsylvania
Son, age 1
Armstrong, Pennsylvania · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Leonard H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Armstrong-County, Pennsylvania
Son, age 12
Armstrong-County, Pennsylvania · implied b. ~1928 — 9 household members
| Surname | Davis |
| Given Name | Leonard W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (County) | Armstrong |
| Highest Grade | No 3 |
| 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 Leonard Davis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Leonard Davis
Son · 1940 · age 12 · b. ~1928 · Pennsylvania
★ You are viewing this record
Sibling
Eugene Davis
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Davis
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arlene Davis
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delores Davis
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorain Davis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Davis
Sibling · 1940 · age 17
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 — Armstrong-County, Pennsylvania
Open full size
1940 US Federal Census — Armstrong-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03424-00137)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary L Speer | 3 | Daughter | — | Pennsylvania |
| 2 | Dewey L Hone | 41 | Head | Steel Mill | Pennsylvania |
| 3 | Alma A Hone | 36 | Wife | — | Pennsylvania |
| 4 | Arlene B Hone | 17 | Daughter | Public School | Pennsylvania |
| 5 | Harry D Hone | 14 | Son | — | Pennsylvania |
| 6 | Boyd M Hone | 10 | Son | — | Pennsylvania |
| 7 | Gerald L Hone | 8 | Son | — | Pennsylvania |
| 8 | Robert L Hone | 6 | Son | — | Pennsylvania |
| 9 | Andrew J Stitt | 44 | Head | Steel Mill | Pennsylvania |
| 10 | Lettie J. B. Stitt | 46 | Wife | — | Pennsylvania |
| 11 | Mark M Harley | 25 | Head | 16 | Pennsylvania |
| 12 | Audry M Harley | 19 | Wife | — | Pennsylvania |
| 13 | Mark M Jr Harley | 0 | Son | — | Pennsylvania |
| 14 | David H Harley | 1 | Son | — | Pennsylvania |
| 15 | Samuel R. C. Davis | 40 | Head | Foundry | Pennsylvania |
| 16 | Elizabeth C. B. Davis | 40 | Wife | — | Pennsylvania |
| 17 | Eugene Davis | 18 | Son | — | Pennsylvania |
| 18 | Donald B. Davis | 17 | Son | — | Pennsylvania |
| 19 | Leonard W. Davis THIS PERSON | 12 | Son | — | Pennsylvania |
| 20 | Lorain E Davis | 9 | Daughter | — | Pennsylvania |
| 21 | Arlene M Davis | 7 | Daughter | — | Pennsylvania |
| 22 | Delores J. Davis | 4 | Daughter | — | Pennsylvania |
| 23 | Carl B Davis | 1 | Son | — | Pennsylvania |
| 24 | Kenneth B Johnston | 26 | Head | 40 | Missouri |
| 25 | Emogene E Johnston | 21 | Wife | — | Pennsylvania |
| 26 | Sheila M Johnston | 0 | Daughter | — | Pennsylvania |
| 27 | Floyd J Johnston | 42 | Brother | 36 | Pennsylvania |
| 28 | Elmer E Horrell | 35 | Head | Water Works | Pennsylvania |
| 29 | Helen E Horrell | 26 | Wife | — | Pennsylvania |
| 30 | Darlene M Horrell | 7 | Daughter | — | Pennsylvania |
| 31 | Dorothy E Horrell | 6 | Daughter | — | Pennsylvania |
| 32 | Melvina J Horrell | 4 | Daughter | — | Pennsylvania |
| 33 | Glenda G. Horrell | 0 | Daughter | — | Pennsylvania |
| 34 | Tobie M Davis | 49 | Head | Steel Mill | Pennsylvania |
| 35 | Nora W Davis | 48 | Wife | — | Pennsylvania |
| 36 | Tobie Davis | 25 | Son | Building Trades | Pennsylvania |
| 37 | Dorothy Davis | 23 | Daughter | — | Pennsylvania |
| 38 | Owen F Hackman | 38 | Head | Steel Mill | Pennsylvania |
| 39 | Mabel G. Hackman | 39 | Wife | — | Pennsylvania |
| 40 | George B Klingensmith | 70 | Head | Steel Mill | 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)