ID
Isaac Davis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, New York
Our Model Tree links this Isaac Davis across the 1930 and 1940 US Censuses in Jefferson-County, New York (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 15-person household.
Age 18
b. ~1922
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, New York |
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Alexandria Town |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | hand laborer |
| Industry | dairy farm |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 250 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Hand Laborer |
| Township / Ward | Alexandria Town |
| Est. Birth Year | ~1922 |
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.
15 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Iseneva Davis | Daughter | — | 13 | ~1927 |
| Lanica Davis | Daughter | — | 8 | ~1932 |
| Brayton Davis | Son | — | 6 | ~1934 |
| Raymond Davis | Son | — | 9 | ~1931 |
| Arthur Davis | Son | — | 3 | ~1937 |
| Irving Davis | Son | — | ~1940 | |
| Clark Davis | Son | — | 2 | ~1938 |
| Isaac Davis | Son | — | 18 | ~1922 |
| Alice Davis | Daughter | — | 11 | ~1929 |
| George Davis | Head | — | 58 | ~1882 |
| Emma Davis | Daughter | — | 14 | ~1926 |
| Heinrich Davis | Son | — | 5 | ~1935 |
| Derwood Davis | Son | — | 4 | ~1936 |
| Anila Davis | Spouse | — | 41 | ~1899 |
| Wallace Davis | Son | — | 15 | ~1925 |
Census Appearances
1930
Jefferson, New …
Son, age 9
Jefferson, New York · implied b. ~1921 — 16 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Jefferson-County, New …
Son, age 18
Jefferson-County, New York · implied b. ~1922 — 15 household members
| Surname | Davis |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Alexandria Town |
| 1935 Residence (County) | Jefferson |
| Occupation | hand laborer |
| Industry | dairy farm |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 250 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Isaac Davis
Son · 1940 · age 18 · b. ~1922 · New York
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Sibling
Clark Davis
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lanica Davis
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Derwood Davis
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Iseneva Davis
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wallace Davis
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Davis
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irving Davis
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Heinrich Davis
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Davis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Davis
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Davis
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Brayton Davis
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 — Jefferson-County, New York
Open full size
1940 US Federal Census — Jefferson-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02544-00208)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leslie H. Getman | 33 | Head | Farmer | New York |
| 2 | Muriel C. Getman | 35 | Wife | — | New York |
| 3 | George N. Davis | 58 | Head | Dairy Farmer | New York |
| 4 | Anila Davis | 41 | Wife | — | New York |
| 5 | Isaac Davis THIS PERSON | 18 | Son | Hand Laborer | New York |
| 6 | Wallace Davis | 15 | Son | — | New York |
| 7 | Emma G. Davis | 14 | Daughter | — | New York |
| 8 | Iseneva Davis | 13 | Daughter | — | New York |
| 9 | Alice Davis | 11 | Daughter | — | New York |
| 10 | Raymond Davis | 9 | Son | — | New York |
| 11 | Lanica Davis | 8 | Daughter | — | New York |
| 12 | Brayton Davis | 6 | Son | — | New York |
| 13 | Heinrich Davis | 5 | Son | — | New York |
| 14 | Derwood Davis | 4 | Son | — | New York |
| 15 | Arthur Davis | 3 | Son | — | New York |
| 16 | Clark Davis | 2 | Son | — | New York |
| 17 | Irving D. Davis | 0 | Son | — | New York |
| 18 | Chloe M. Fritz | 37 | Head | Housework | New York |
| 19 | August A. Fritz | 19 | Son | Hand Laborer | New York |
| 20 | Martin Robbins | 35 | Lodger | Hand Laborer | Canada |
| 21 | Floyd G. Burnham | 25 | Head | Dairy Farmer | New York |
| 22 | Mary E. Burnham | 21 | Wife | — | New York |
| 23 | Veronica E. Burnham | 1 | Daughter | — | New York |
| 24 | William D. Hardy | 58 | Head | Dairy Farmer | New York |
| 25 | Beulah A. Hardy | 47 | Wife | — | New York |
| 26 | Lydia Hutton | 38 | Head | — | New York |
| 27 | Isabelle Hutton | 37 | Daughter | — | New York |
| 28 | Lydia Jr. Hutton | 27 | Daughter | Maid | New York |
| 29 | Emma Hutton | 15 | Daughter | — | New York |
| 30 | Stanley Hutton | 18 | Son | Hand Laborer | New York |
| 31 | William Hutton | 30 | Son | Cutting Wood | New York |
| 32 | Arnold Hutton | 8 | Grandson | — | New York |
| 33 | Oscar Schneider | 26 | Head | Dairy Farmer | New York |
| 34 | Eleanor Schneider | 20 | Wife | — | New York |
| 35 | Cassie B. George | 64 | Head | — | New York |
| 36 | Melvin G. Frazier | 34 | Head | Hand Laborer | New York |
| 37 | Viola B. Frazier | 24 | Wife | — | New York |
| 38 | Claude E. Frazier | 1 | Son | — | New York |
| 39 | Edward J. Carlisle | 30 | Head | Hand Laborer | New York |
| 40 | Carlisle H. Carlisle | 58 | Head | — | New York |
Related Census Records
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)