RC
Robert Cook — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Linn-County, Iowa
Our Model Tree links this Robert Cook across the 1910, 1920, 1930 and 1940 US Censuses in Linn-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 5-person household.
Age 55
b. ~1885
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Linn-County, Iowa |
| Surname | Cook |
| Given Name | Robert S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Rapids |
| 1935 Residence (County) | Linn |
| Additional Details | |
| Occupation | Manager |
| Industry | Hotel business |
| Class of Worker | E |
| Hours Worked | 60 |
| Income (1939) | 156 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Manager |
| Township / Ward | Cedar Rapids |
| Est. Birth Year | ~1885 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Eleanor Cook | Daughter | — | 35 | ~1905 |
| Robert Cook | Head | — | 55 | ~1885 |
| Mary Smith | Other | — | 32 | ~1908 |
| Sutherland Cook | Son | — | 24 | ~1916 |
| Raun Cook | Spouse | — | 54 | ~1886 |
Census Appearances
1910
Linn, Iowa
Head, age 25
Linn, Iowa · implied b. ~1885
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Cook |
| Given Name | Robert S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Iowa |
| Years Married | 1 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Insurance and Real Estate |
| Industry | Agent |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Linn, Iowa
Head, age 35
Linn, Iowa · implied b. ~1885 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Robert S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Asst General Manager |
| Industry | Interurban Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Linn, Iowa
Head, age 44
Linn, Iowa · implied b. ~1886 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Robert S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 23 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Assistant Manager |
| Industry | Light & Power Plant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 25000 |
| Radio Set | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Linn-County, Iowa
Head, age 55
Linn-County, Iowa · implied b. ~1885 — 5 household members
| Surname | Cook |
| Given Name | Robert S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Cedar Rapids |
| 1935 Residence (County) | Linn |
| Occupation | Manager |
| Industry | Hotel business |
| Class of Worker | E |
| Hours Worked | 60 |
| Income (1939) | 156 |
| Highest Grade | C 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 Robert Cook across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Cook
Head · 1940 · age 55 · b. ~1885 · 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 — Linn-County, Iowa
Open full size
1940 US Federal Census — Linn-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01176-00172)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Chas W Sr Boegel | 73 | Head | Retired | Iowa |
| 2 | Del Leone Boegel | 62 | Wife | — | Iowa |
| 3 | Thelma Boegel | 41 | Daughter | — | Iowa |
| 4 | Maxine Boegel | 40 | Daughter | — | Iowa |
| 5 | Chas W Jr Boegel | 36 | Son | Salesman | Iowa |
| 6 | Bernard Boegel | 33 | Son | Manager | Iowa |
| 7 | Howard Hall | 45 | Head | President | Iowa |
| 8 | Margaret Hall | 42 | Wife | — | Mich. |
| 9 | Rudolph Abram | 46 | Servant | Butler | Austria |
| 10 | Annie Abram | 44 | Servant | Cook | Austria |
| 11 | John Abram Abram | 2 | Son | — | Illinois |
| 12 | Wencil Melsha | 41 | Head | Janitor & Maintenance Man | Iowa |
| 13 | Julia Melsha | 58 | Wife | Laundress | Iowa |
| 14 | Frances Melsha | 30 | Daughter | Bookkeeper | Iowa |
| 15 | David Hughes | 43 | Head | Head Gardener | Wales |
| 16 | Blanche Hughes | 38 | Wife | Maid | Iowa |
| 17 | Harold Hughes | 16 | Son | Yard Boy | Iowa |
| 18 | Henry H. Hamilton | 37 | Head | Medical Doctor | Iowa |
| 19 | Frances Hamilton | 31 | Wife | — | Michigan |
| 20 | John Allen Hamilton | 3 | Son | — | Iowa |
| 21 | Elmer C. Allen | 66 | Father-in-law | — | Michigan |
| 22 | Emma Glew | 54 | Servant | Maid | Iowa |
| 23 | Chris Montana | 42 | Head | Sales Manager | Missouri |
| 24 | Madeline Montana | 40 | Wife | — | Missouri |
| 25 | Robert Montana | 14 | Son | Paper Route | Missouri |
| 26 | Elizabeth Montana | 11 | Daughter | — | Iowa |
| 27 | Franklin Battin | 39 | Head | Salesman | Iowa |
| 28 | Naomi Battin | 39 | Wife | — | Iowa |
| 29 | James P. Ii Battin | 17 | Son | — | Iowa |
| 30 | David Young Battin | 15 | Son | — | Iowa |
| 31 | Beahl J. Perrine | 39 | Head | Lawyer | Iowa |
| 32 | Irene Perrine | 38 | Wife | — | Iowa |
| 33 | Margaret Hall | 68 | Mother-in-law | — | Iowa |
| 34 | Hazel Heasty | 27 | Servant | Maid | Iowa |
| 35 | Robert S. Cook THIS PERSON | 55 | Head | Manager | Iowa |
| 36 | Raun Cook | 54 | Wife | — | Iowa |
| 37 | Eleanor Cook | 35 | Daughter | — | Iowa |
| 38 | Sutherland Cook | 24 | Son | — | Iowa |
| 39 | Mary Smith | 32 | Servant | Maid | Iowa |
| 40 | Vernon Stevens | 30 | Head | Chief Clerk | Illinois |
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)