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Martha Lewis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Van-Buren-County, Iowa
Our Model Tree links this Martha Lewis across the 1920, 1930 and 1940 US Censuses in Van-Buren-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1873), then head of a 4-person household.
Age 67
b. ~1873
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Van-Buren-County, Iowa |
| Surname | Lewis |
| Given Name | Martha A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Village Township |
| 1935 Residence (County) | Van Buren |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Village Township |
| Est. Birth Year | ~1873 |
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 Martha | Age | Birth yr |
|---|---|---|---|---|
| James Lewis | Head | — | 68 | ~1872 |
| Eli Lewis | Other | — | 65 | ~1875 |
| Kenneth Lewis | Son | — | 22 | ~1918 |
| Martha Lewis | Spouse | — | 67 | ~1873 |
Census Appearances
1920
Van Buren, …
Spouse, age 46
Van Buren, Iowa · implied b. ~1874 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Van Buren, …
Other, age 56
Van Buren, Iowa · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Martha A. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Van-Buren-County, Iowa
Spouse, age 67
Van-Buren-County, Iowa · implied b. ~1873 — 4 household members
| Surname | Lewis |
| Given Name | Martha A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Village Township |
| 1935 Residence (County) | Van Buren |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Martha Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Lewis
Spouse · 1940 · age 67 · b. ~1873 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Van-Buren-County, Iowa
Open full size
1940 US Federal Census — Van-Buren-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01208-00856)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | E. D. Michael | 65 | Head | Farmer | Iowa |
| 2 | Della N. Michael | 64 | Wife | — | Iowa |
| 3 | Ita O. Michael | 31 | Daughter | Farmer | Iowa |
| 4 | John D. Ford | 40 | Hired Hand | Farm Laborer | Iowa |
| 5 | Will E. Michael | 68 | Head | Farmer | Iowa |
| 6 | Bessie M. Michael | 68 | Wife | — | Iowa |
| 7 | Cecil C. Smith | 35 | Head | Farmer | Iowa |
| 8 | Meda B. Smith | 32 | Wife | — | Iowa |
| 9 | Ella M. Nicklin | 72 | Head | — | Iowa |
| 10 | Edna A. Nicklin | 57 | Daughter | — | Iowa |
| 11 | Nora A. Nicklin | 53 | Daughter | — | Iowa |
| 12 | Wayne E. Walker | 31 | Head | Common Labor | Iowa |
| 13 | Susan P. Walker | 30 | Wife | — | Iowa |
| 14 | John H. Walker | 5 | Son | — | Iowa |
| 15 | Kenneth N. Walker | 3 | Son | — | Iowa |
| 16 | Clarence W. Walker | 1 | Son | — | Iowa |
| 17 | Milt E. Gibson | 65 | Head | Farmer | Kansas |
| 18 | Emergene A. Gibson | 61 | Wife | — | Iowa |
| 19 | Richard G. Vanwulden | 15 | Son | — | Iowa |
| 20 | Ira D. Dabney | 30 | Head | Farmer | Iowa |
| 21 | Merriam L. Dabney | 26 | Wife | — | Iowa |
| 22 | Virgil E. Dabney | 5 | Son | — | Iowa |
| 23 | Julia L. Dabney | 3 | Daughter | — | Iowa |
| 24 | Vester V. Helm | 33 | Head | Common Labor | Iowa |
| 25 | Carlotta M. Helm | 27 | Wife | — | Iowa |
| 26 | Edward J. Helm | 11 | Son | — | Iowa |
| 27 | Leroy F. Helm | 9 | Son | — | Iowa |
| 28 | Irla M. Helm | 5 | Daughter | — | Iowa |
| 29 | Evelyn M. Helm | 2 | Daughter | — | Iowa |
| 30 | Lewis P. Helm | 71 | Father | — | Iowa |
| 31 | James Lewis | 68 | Head | — | Iowa |
| 32 | Martha A. Lewis THIS PERSON | 67 | Wife | — | Iowa |
| 33 | Kenneth E. Lewis | 22 | Son | Sub Mail Carrier | Iowa |
| 34 | Eli Lewis | 65 | Brother | — | Iowa |
| 35 | Sherman S. Miller | 45 | Head | Farmer | Iowa |
| 36 | Ethel M. Miller | 38 | Wife | — | Iowa |
| 37 | Evelyn D. Miller | 16 | Daughter | — | Iowa |
| 38 | Lloyd A. Miller | 14 | Son | — | Iowa |
| 39 | Basil B. Holley | 46 | Head | — | Iowa |
| 40 | Paula M. Holley | 43 | Wife | — | Iowa |
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)