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David Lewis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bayfield-County, Wisconsin
Our Model Tree links this David Lewis across the 1910, 1920, 1930 and 1940 US Censuses in Bayfield-County, Wisconsin (XGBoost, ~Confirmed) — first a head (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bayfield-County, Wisconsin |
| Surname | Lewis |
| Given Name | David C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Cable Village |
| 1935 Residence (County) | Bayfield |
| Additional Details | |
| Occupation | Com. Lab. |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 42 |
| Income (1939) | 400 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Com. Lab. |
| Township / Ward | Cable Village |
| Est. Birth Year | ~1910 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| David Lewis | Head | — | 30 | ~1910 |
| David Lewis | Son | — | 3 | ~1937 |
| Donald Lewis | Son | — | 1 | ~1939 |
| Lola Lewis | Spouse | — | 20 | ~1920 |
Census Appearances
1910
Bayfield, Wisconsin
Other, age
Bayfield, Wisconsin · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David |
| Relationship to Head | Grand Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Bayfield, Wisconsin
Other, age 9
Bayfield, Wisconsin · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David C |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Bayfield, Wisconsin
Other, age 20
Bayfield, Wisconsin · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | David |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Age at First Marriage | 20 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Bayfield-County, Wisconsin
Head, age 30
Bayfield-County, Wisconsin · implied b. ~1910 — 4 household members
| Surname | Lewis |
| Given Name | David C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Cable Village |
| 1935 Residence (County) | Bayfield |
| Occupation | Com. Lab. |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 42 |
| Income (1939) | 400 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 David Lewis across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
David Lewis
Head · 1940 · age 30 · b. ~1910 · Wisconsin
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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 — Bayfield-County, Wisconsin
Open full size
1940 US Federal Census — Bayfield-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04458-00134)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Andy D. Harmon | 69 | Head | Minister | Nebraska |
| 42 | Alice G. Harmon | 69 | Wife | — | Iowa |
| 43 | Vera L. Kramer | 35 | Head | — | Wisconsin |
| 44 | John V. Kramer | 15 | Son | — | Illinois |
| 45 | Donald A. Kramer | 13 | Son | — | Illinois |
| 46 | Arthur F. Kramer | 11 | Son | — | Illinois |
| 47 | Elmer H. Britney | 60 | Head | Proprietor | Kansas |
| 48 | Ellen S. Britney | 45 | Wife | — | Germany |
| 49 | Anna M. Estra | 65 | Head | — | Czechoslovakia |
| 50 | Stanley Olis | 47 | Roomer | Superintendent | Connecticut |
| 51 | Godfrey J. Ruf | 59 | Head | Farmer | Wisconsin |
| 52 | Maude B. Ruf | 60 | Wife | — | Minnesota |
| 53 | Mary A. Hutchinson | 66 | Head | — | Wisconsin |
| 54 | Thomas A. Rondeau | 37 | Head | Proprietor | Wisconsin |
| 55 | Rose H. Rondeau | 36 | Wife | — | Wisconsin |
| 56 | James W. Rondeau | 17 | Son | Millhand | Minnesota |
| 57 | Thomas E. Rondeau | 11 | Son | — | Wisconsin |
| 58 | Ruth M. Rondeau | 9 | Daughter | — | Wisconsin |
| 59 | Beatrice A. Rondeau | 6 | Daughter | — | Wisconsin |
| 60 | James C. Richardson | 52 | Head | Telephone Lineman | Texas |
| 61 | Anna E. Richardson | 43 | Wife | Stenographer | Minnesota |
| 62 | Patricia A. Richardson | 14 | Daughter | — | Minnesota |
| 63 | Mathias Martin | 75 | Head | Engineer | Norway |
| 64 | Ida J. Martin | 78 | Wife | — | Ohio |
| 65 | Ottilia A. Baumer | 73 | Sister-in-law | Trained Nurse | Wisconsin |
| 66 | George B. Williams | 55 | Head | Proprietor | Wisconsin |
| 67 | Cora F. Williams | 54 | Wife | — | Wisconsin |
| 68 | George B. Jr. Williams | 21 | Son | — | Wisconsin |
| 69 | Joseph F. Hawley | 56 | Head | Janitor | Canada English |
| 70 | Nettie I. Hawley | 54 | Wife | — | Wisconsin |
| 71 | David C. Lewis THIS PERSON | 30 | Head | Com. Lab. | Wisconsin |
| 72 | Lola M. Lewis | 20 | Wife | — | Wisconsin |
| 73 | David C. Jr. Lewis | 3 | Son | — | Wisconsin |
| 74 | Donald F. Lewis | 1 | Son | — | Wisconsin |
| 75 | Andrew H. Walport | 24 | Head | Com. Labor | Minnesota |
| 76 | Jane E. Walport | 19 | Wife | Waitress | Wisconsin |
| 77 | William J. Couture | 42 | Head | Clerk | Wisconsin |
| 78 | Vera M. Couture | 41 | Wife | Janitor | Wisconsin |
| 79 | Robert B. Couture | 19 | Son | Odd Jobs | Wisconsin |
| 80 | Peggy J. Couture | 10 | Daughter | — | Wisconsin |
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)