RL
Ruth Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Ruth Lewis across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed), with identified parents Esther & Henry — first a daughter (b.~1914), then head of a 7-person household.
Age 26
b. ~1914
Female
Daughter
Born: Iowa
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Lewis |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Typist |
| Industry | WPA Library |
| Class of Worker | GW |
| Hours Worked | 38 |
| Income (1939) | 625 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Typist |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1914 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Lewis | Daughter | — | 26 | ~1914 |
| Edna Mccarty | Daughter | — | 24 | ~1916 |
| Esther Olson | Head | — | 51 | ~1889 |
| Francis Mccarty | Other | — | 39 | ~1901 |
| Dennis Mccarty | Other | — | 2 | ~1938 |
| Carl Olson | Son | — | 20 | ~1920 |
| John Olson | Son | — | 28 | ~1912 |
Census Appearances
1920
Polk, Iowa
Daughter, age 5
Polk, Iowa · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Daughter, age 15
Polk, Iowa · implied b. ~1915 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Ruth D. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | United States |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Daughter, age 26
Polk-County, Iowa · implied b. ~1914 — 7 household members
| Surname | Lewis |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Typist |
| Industry | WPA Library |
| Class of Worker | GW |
| Hours Worked | 38 |
| Income (1939) | 625 |
| Highest Grade | No 7 |
| 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 Ruth Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Esther Olson (~0.92 confidence) and father Henry Lewis (~0.92 confidence) and father Homer Lewis (~0.92 confidence) and mother Hessie Lewis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Esther Olson
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Henry Lewis
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Homer Lewis
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Hessie Lewis
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Lewis
Daughter · 1940 · age 26 · b. ~1914 · Iowa
★ You are viewing this record
Sibling
Edna Mccarty
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Olson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Olson
Sibling · 1940 · age 28
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 — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01195-00378)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fern Schneider | 40 | Head | Playground Dir. | Iowa |
| 2 | Walter Schneider | 15 | Son | — | Iowa |
| 3 | Betty Ann Schneider | 12 | Daughter | — | Iowa |
| 4 | Gust Peterson | 45 | Head | Bartender | Minn. |
| 5 | Louise Peterson | 35 | Wife | — | Wisconsin |
| 6 | Bert Spainhower | 54 | Head | Foreman Bed Maker | Illinois |
| 7 | Maude Spainhower | 55 | Wife | — | Illinois |
| 8 | Howard Spainhower | 28 | Son | Yeast Maker | Illinois |
| 9 | Ellen A. Glasgow | 37 | Head | Cashier | Iowa |
| 10 | Marjorie Glasgow | 36 | Wife | School Teacher | Missouri |
| 11 | Albert S. Condon | 66 | Head | Printer | Iowa |
| 12 | Addie Condon | 66 | Wife | — | Kansas |
| 13 | Harry A. Miller | 46 | Head | Attendant | Pennsylvania |
| 14 | Helen Miller | 44 | Wife | — | Iowa |
| 15 | Mildred Gortzak | 35 | Head | Office Clerk | Iowa |
| 16 | Eva Gortzak | 35 | Lodger | Manicurist | Iowa |
| 17 | Charles L. Campbell | 33 | Head | Doctor, M.D. | Iowa |
| 18 | Anna Mchenry | 64 | Head | Investigator | Iowa |
| 19 | Jenny Murphy | 83 | Mother | — | Iowa |
| 20 | Nellie Hart | 57 | Housekeeper | Housework | Iowa |
| 21 | Neal A. Sheffield | 46 | Head | Supervisor | Nebraska |
| 22 | Helen Sheffield | 48 | Wife | — | Nebraska |
| 23 | Neal A. Jr. Sheffield | 18 | Son | Sales Clerk | Nebraska |
| 24 | Esther Olson | 51 | Head | Housework | Sweden |
| 25 | Francis Mccarty | 39 | Son-in-law | Deputy Sheriff | Iowa |
| 26 | Edna Mccarty | 24 | Daughter | — | Iowa |
| 27 | Dennis Mccarty | 2 | Grandson | — | Iowa |
| 28 | John Jr. Olson | 28 | Son | Sheet Metal | Iowa |
| 29 | Carl Olson | 20 | Son | Auto Mechanic | Iowa |
| 30 | Ruth Lewis THIS PERSON | 26 | Daughter | Typist | Iowa |
| 31 | David Bosehardt | 70 | Head | — | Louisiana |
| 32 | Hattie Bosehardt | 38 | Daughter | Stenographer | Louisiana |
| 33 | Lucy Bosehardt | 36 | Daughter | Trained Nurse | Louisiana |
| 34 | John H. Rowan | 48 | Head | Auditor | Iowa |
| 35 | Regina Rowan | 49 | Wife | — | Iowa |
| 36 | William X. Rowan | 21 | Son | Bell Boy | Iowa |
| 37 | James J. Rowan | 18 | Son | Drug Clerk | Iowa |
| 38 | Helen Spain | 51 | Head | — | Iowa |
| 39 | Gwendolyn M. Wilkinson | 11 | Grand-Daughter | — | Iowa |
| 40 | Arthur Brammer | 23 | Head | Shipping Clerk | Colorado |
Pedigree Summary
Ruth + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)