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Robert Oliver — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clinton-County, Iowa
Our Model Tree links this Robert Oliver across the 1920, 1930 and 1940 US Censuses in Clinton-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 6-person household.
Age 50
b. ~1890
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clinton-County, Iowa |
| Surname | Oliver |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Clinton City |
| 1935 Residence (County) | Clinton |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Clinton City |
| Est. Birth Year | ~1890 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Edward Oliver | Son | — | 9 | ~1931 |
| Ruth Oliver | Spouse | — | 50 | ~1890 |
| Phyllis Oliver | Daughter | — | 16 | ~1924 |
| Margaret Oliver | Daughter | — | 12 | ~1928 |
| Robert Oliver | Head | — | 50 | ~1890 |
| Robert Oliver | Son | — | 19 | ~1921 |
Census Appearances
1920
Clinton, Iowa
Head, age 30
Clinton, Iowa · implied b. ~1890 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Oliver |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | Fireman |
| Industry | Locomotive |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Clinton, Iowa
Head, age 40
Clinton, Iowa · implied b. ~1890 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Oliver |
| Given Name | Robert W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 20 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Iowa |
| Occupation | Fireman |
| Industry | Steam railway |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Radio Set | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Clinton-County, Iowa
Head, age 50
Clinton-County, Iowa · implied b. ~1890 — 6 household members
| Surname | Oliver |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Clinton City |
| 1935 Residence (County) | Clinton |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 5 |
| 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 Robert Oliver across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Oliver
Head · 1940 · age 50 · b. ~1890 · Iowa
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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 — Clinton-County, Iowa
Open full size
1940 US Federal Census — Clinton-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01150-00662)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carl Schneider | 72 | Head | — | Germany |
| 2 | Christine Schneider | 74 | Wife | — | Germany |
| 3 | Edith O Haswell | 38 | Daughter | — | Iowa |
| 4 | Beverly Haswell | 17 | Granddaughter | Caseper Packer | Iowa |
| 5 | Patricia Haswell | 11 | Granddaughter | — | Iowa |
| 6 | Robert Haswell | 9 | Grandson | — | Iowa |
| 7 | Marilyn Haswell | 7 | Granddaughter | — | Iowa |
| 8 | Richard Haswell | 4 | Grandson | — | Iowa |
| 9 | Marie O Andrews | 66 | Head | — | Germany |
| 10 | Gail Andrews | 34 | Son | — | Iowa |
| 11 | George Andrews | 26 | Son | Millwright | Iowa |
| 12 | Paul C Hansen | 65 | Head | Millwright | Germany |
| 13 | Christine N Hansen | 57 | Wife | Paperhanger | Illinois |
| 14 | Roy M Hansen | 33 | Son | — | Iowa |
| 15 | Everett R Hansen | 27 | Son | Finisher | Iowa |
| 16 | Paul E Hansen | 25 | Son | Laborer | Iowa |
| 17 | Donald Hansen | 19 | Son | Shipper | Iowa |
| 18 | Dorothy Hansen | 19 | Daughter | — | Iowa |
| 19 | Simon Rasmussen | 40 | Head | — | Iowa |
| 20 | Marie Rasmussen | 42 | Wife | Millwright | Iowa |
| 21 | Frank Murray | 52 | Lodger | — | Iowa |
| 22 | George Brown | 70 | Lodger | — | Iowa |
| 23 | Robert Oliver THIS PERSON | 50 | Head | — | Iowa |
| 24 | Ruth O Oliver | 50 | Wife | Fireman | Illinois |
| 25 | Robert Oliver | 19 | Son | — | Iowa |
| 26 | Phyllis Oliver | 16 | Daughter | — | Iowa |
| 27 | Margaret Oliver | 12 | Daughter | — | Iowa |
| 28 | Edward Oliver | 9 | Son | — | Iowa |
| 29 | Donald Sleeper | 25 | Head | Woodworker | Iowa |
| 30 | Leola G Sleeper | 27 | Wife | — | Iowa |
| 31 | Donald Sleeper | 4 | Son | — | Iowa |
| 32 | Loyd Sleeper | 30 | Brother | — | Iowa |
| 33 | Cornelius Klomp | 49 | Head | Machinist | Holland |
| 34 | Esther O Klomp | 28 | Wife | Millwright | Iowa |
| 35 | Thomas Klomp | 5 | Son | — | Iowa |
| 36 | Helen Klomp | 4 | Daughter | — | Iowa |
| 37 | Esther Klomp | 2 | Daughter | — | Iowa |
| 38 | Peter Christensen | 72 | Head | — | Denmark |
| 39 | Christine Christensen | 81 | Wife | — | Denmark |
| 40 | Marie Christensen | 45 | Daughter | Telephone Operator | 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)