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Martha Lewis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Leavenworth-County, Kansas
Our Model Tree links this Martha Lewis across the 1930 and 1940 US Censuses in Leavenworth-County, Kansas (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Female
Daughter
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Leavenworth-County, Kansas |
| Surname | Lewis |
| Given Name | Martha V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Leavenworth City |
| 1935 Residence (County) | Leavenworth |
| Additional Details | |
| Industry | 0 |
| Class of Worker | No |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Leavenworth City |
| Est. Birth Year | ~1929 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Frances Lewis | Daughter | — | 17 | ~1923 |
| Mary Lewis | Daughter | — | 15 | ~1925 |
| Virginia Lewis | Daughter | — | 20 | ~1920 |
| Helen Lewis | Daughter | — | 13 | ~1927 |
| Martha Lewis | Daughter | — | 11 | ~1929 |
| John Lewis | Head | — | 50 | ~1890 |
| John Lewis | Son | — | 9 | ~1931 |
| Estella Lewis | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Leavenworth, Kansas
Daughter, age 1
Leavenworth, Kansas · implied b. ~1929 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Martha V |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Leavenworth-County, Kansas
Daughter, age 11
Leavenworth-County, Kansas · implied b. ~1929 — 8 household members
| Surname | Lewis |
| Given Name | Martha V. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Leavenworth City |
| 1935 Residence (County) | Leavenworth |
| Industry | 0 |
| Class of Worker | No |
| Highest Grade | No 5 |
| 1935 Residence | Same House |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Lewis
Daughter · 1940 · age 11 · b. ~1929 · Kansas
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Sibling
Virginia Lewis
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Lewis
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Lewis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Lewis
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Lewis
Sibling · 1940 · age 15
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 — Leavenworth-County, Kansas
Open full size
1940 US Federal Census — Leavenworth-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01240-01040)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Kenneth K. Kenton | 16 | Son | — | Missouri |
| 2 | Berniece Kenton | 14 | Daughter | — | Missouri |
| 3 | Bobbie L. Kenton | 10 | Son | — | Missouri |
| 4 | Harold A. Watts | 22 | Son | Janitor | Kansas |
| 5 | John L. Leach | 74 | Head | Owner | Virginia |
| 6 | Margaret G. Leach | 74 | Wife | — | Wisconsin |
| 7 | Bertha L. England | 38 | Head | Stenographer | Kansas |
| 8 | Cora E. England | 66 | Mother | — | Kansas |
| 9 | William J. Edwards | 60 | Head | — | Iowa |
| 10 | John N. Lewis | 50 | Head | Truck Driver | Kansas |
| 11 | Estella V. Lewis | 47 | Wife | — | Missouri |
| 12 | Virginia R. Lewis | 20 | Daughter | Stenographer | Missouri |
| 13 | Frances E. Lewis | 17 | Daughter | — | Kansas |
| 14 | Mary M. Lewis | 15 | Daughter | — | Kansas |
| 15 | Helen J. Lewis | 13 | Daughter | — | Kansas |
| 16 | Martha V. Lewis THIS PERSON | 11 | Daughter | — | Kansas |
| 17 | John H. Lewis | 9 | Son | — | Kansas |
| 18 | Frank J. Killelay | 42 | Head | Mac | Kansas |
| 19 | Marie C. Killelay | 40 | Wife | — | Kansas |
| 20 | Frank E. Killelay | 19 | Son | — | Kansas |
| 21 | Charles E. Fulton | 33 | Head | Fireman | Kansas |
| 22 | Celia E. Fulton | 32 | Wife | — | Oklahoma |
| 23 | Reynald J. Fulton | 15 | Son | — | Kansas |
| 24 | X. B. Cecil | 42 | Head | Laborer | Kentucky |
| 25 | Billie Cecil | 29 | Wife | — | Kentucky |
| 26 | Anna G. Cecil | 13 | Daughter | — | Kansas |
| 27 | X. B. Jr. Cecil | 10 | Son | — | Kansas |
| 28 | J. D. Cecil | 9 | Son | — | Kansas |
| 29 | Billie S. Cecil | 3 | Daughter | — | Kansas |
| 30 | Mildred L. Cecil | 1 | Daughter | — | Kansas |
| 31 | Mit T. Harris | 44 | Head | Truck Driver | Missouri |
| 32 | Dorothy M. Harris | 38 | Wife | — | Kansas |
| 33 | Joseph F. Kalb | 41 | Head | Mechanist | Kansas |
| 34 | Margaret L. Kalb | 36 | Wife | — | Kansas |
| 35 | Mary M. Kalb | 16 | Daughter | — | Kansas |
| 36 | Catherine M. Kalb | 14 | Daughter | — | Kansas |
| 37 | Florence E. Kalb | 12 | Daughter | — | Kansas |
| 38 | Joe Jr. Kalb | 10 | Son | — | Kansas |
| 39 | Lena M. Frankie | 74 | Head | — | Kansas |
| 40 | William H. Flack | 47 | Head | Gardner-Laborer | Kansas |
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)