RH
Ruth Hill — 1940 US Census Record
Model Tree available1940 United States Federal Census · Black-Hawk-County, Iowa
Our Model Tree links this Ruth Hill across the 1920, 1930 and 1940 US Censuses in Black-Hawk-County, Iowa (XGBoost, ~Confirmed), with identified parents Benjamin & Blanche — first a daughter (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Black-Hawk-County, Iowa |
| Surname | Hill |
| Given Name | Ruth E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Falls City |
| 1935 Residence (County) | Black Hawk |
| Additional Details | |
| Occupation | Clerk |
| Industry | Retail Store |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 416 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Clerk |
| Township / Ward | Cedar Falls City |
| Est. Birth Year | ~1919 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Hill | Daughter | — | 21 | ~1919 |
| Blanche Hill | Head | — | 52 | ~1888 |
| Charles Hill | Son | — | 18 | ~1922 |
Census Appearances
1920
Black Hawk, …
Daughter, age 1
Black Hawk, Iowa · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hill |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Arkansas |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Black Hawk, …
Daughter, age 11
Black Hawk, Iowa · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hill |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Arkansas |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Black-Hawk-County, Iowa
Daughter, age 21
Black-Hawk-County, Iowa · implied b. ~1919 — 3 household members
| Surname | Hill |
| Given Name | Ruth E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Falls City |
| 1935 Residence (County) | Black Hawk |
| Occupation | Clerk |
| Industry | Retail Store |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 416 |
| Highest Grade | H 4 |
| 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 Hill across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Benjamin Hill (~0.92 confidence) and mother Blanche Hill (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Benjamin Hill
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Blanche Hill
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Hill
Daughter · 1940 · age 21 · b. ~1919 · Iowa
★ You are viewing this record
Sibling
Charles Hill
Sibling · 1940 · age 18
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 — Black-Hawk-County, Iowa
Open full size
1940 US Federal Census — Black-Hawk-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01139-00359)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Beulah K. Saak | 7 | Daughter | — | Iowa |
| 42 | Clifford G. Turnbull | 43 | Head | Accountant | Wisconsin |
| 43 | Alma M. Turnbull | 38 | Wife | — | Iowa |
| 44 | Patricia Turnbull | 11 | Daughter | — | Iowa |
| 45 | Mildred Holly | 22 | Lodger | Secretary | Iowa |
| 46 | Curtis C. Lyon | 57 | Head | — | Kansas |
| 47 | Josephine K. Lyon | 51 | Wife | House Mother | Iowa |
| 48 | Ward L. Lyon | 19 | Son | Nya | Iowa |
| 49 | Bernadette A. Lyon | 16 | Daughter | — | Minnesota |
| 52 | Anna H. Chapman | 91 | Head | — | Germany |
| 53 | Edith C. Baldwin | 64 | Daughter | — | Illinois |
| 54 | Mary K. Dickey | 19 | Lodger | Sales Lady | Iowa |
| 55 | Leona Hurst | 23 | Lodger | Cook | Iowa |
| 56 | Mary Wiler | 77 | Head | — | Maryland |
| 57 | Blanche Hill | 52 | Head | — | Arkansas |
| 58 | Ruth E. Hill THIS PERSON | 21 | Daughter | Clerk | Iowa |
| 59 | Charles J. Hill | 18 | Son | Laborer | Iowa |
| 60 | Harry P. Smith | 43 | Head | Janitor | Iowa |
| 61 | Martha M. Smith | 39 | Wife | — | Iowa |
| 62 | Luella C. Smith | 16 | Daughter | — | Minnesota |
| 63 | J. Asa Arnold | 28 | Head | Bookkeeper | Iowa |
| 64 | Audelle L. Arnold | 25 | Wife | Home Laundry | Iowa |
| 65 | Peter M. Miller | 67 | Head | Broker | Iowa |
| 66 | Eva B. Miller | 59 | Wife | — | Minnesota |
| 67 | Marius Bergstrom | 62 | Head | — | Iowa |
| 68 | Ellen C. Bergstrom | 58 | Wife | — | Iowa |
| 69 | Marlys K. Bergstrom | 16 | Daughter | — | Iowa |
| 70 | Duane E. Hoeffner | 26 | Lodger | Laborer | Iowa |
| 71 | Robert J. Hall | 27 | Head | Machinist | Iowa |
| 72 | Agnes L. Hall | 27 | Wife | Beauty Operator | Iowa |
| 73 | Andrew H. Refshauge | 62 | Head | Broker | Iowa |
| 74 | Dora C. Refshauge | 58 | Wife | — | Iowa |
| 75 | Helen D. Refshauge | 19 | Daughter | — | Iowa |
| 76 | Harry E. Keller | 30 | Head | Office | Iowa |
| 77 | Bernice V. Keller | 31 | Wife | — | Iowa |
| 78 | Clyde C. Johnson | 32 | Head | Chicken Sexer | Iowa |
| 79 | Kathryn E. Johnson | 29 | Wife | — | Iowa |
| 80 | Elizabeth Englert | 31 | Lodger | Teacher | Iowa |
Pedigree Summary
Ruth + 1 sibling
Gen 1 · 2 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)