RC
Robert Cole — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monona-County, Iowa
Our Model Tree links this Robert Cole across the 1930 and 1940 US Censuses in Monona-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monona-County, Iowa |
| Surname | Cole |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Onawa City |
| 1935 Residence (County) | Monona |
| Additional Details | |
| Occupation | Clerk |
| Industry | Retail Grocery |
| Class of Worker | PW |
| Hours Worked | 15 |
| Income (1939) | 75 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Clerk |
| Township / Ward | Onawa City |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Ruth Cole | Daughter | — | 13 | ~1927 |
| Susan Cole | Daughter | — | 6 | ~1934 |
| Lorrine Cole | Daughter | — | 16 | ~1924 |
| George Cole | Head | — | 46 | ~1894 |
| Myron Cole | Son | — | 2 | ~1938 |
| George Cole | Son | — | 10 | ~1930 |
| Robert Cole | Son | — | 18 | ~1922 |
| Keith Cole | Son | — | 4 | ~1936 |
| Charles Cole | Son | — | 8 | ~1932 |
| Margaret Cole | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Monona, Iowa
Son, age 8
Monona, Iowa · implied b. ~1922 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cole |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Monona-County, Iowa
Son, age 18
Monona-County, Iowa · implied b. ~1922 — 10 household members
| Surname | Cole |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Onawa City |
| 1935 Residence (County) | Monona |
| Occupation | Clerk |
| Industry | Retail Grocery |
| Class of Worker | PW |
| Hours Worked | 15 |
| Income (1939) | 75 |
| 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 Robert Cole across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Cole
Son · 1940 · age 18 · b. ~1922 · Iowa
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Sibling
Myron Cole
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Cole
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Keith Cole
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Susan Cole
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Cole
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Cole
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorrine Cole
Sibling · 1940 · age 16
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 — Monona-County, Iowa
Open full size
1940 US Federal Census — Monona-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01184-00380)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles A. Tuttle | 7 | Step-son | — | Iowa |
| 2 | George L. Tuttle | 5 | Step-son | — | Iowa |
| 3 | George R. Cole | 46 | Head | Carpenter | Iowa |
| 4 | Margaret M. Cole | 41 | Wife | Clerk | Iowa |
| 5 | Robert E. Cole THIS PERSON | 18 | Son | Clerk | Iowa |
| 6 | Lorrine M. Cole | 16 | Daughter | — | Iowa |
| 7 | Ruth B. Cole | 13 | Daughter | — | Iowa |
| 8 | George Jr. Cole | 10 | Son | — | Iowa |
| 9 | Charles L. Cole | 8 | Son | — | Iowa |
| 10 | Susan Carol Cole | 6 | Daughter | — | Iowa |
| 11 | Keith B. Cole | 4 | Son | — | Iowa |
| 12 | Myron Lee Cole | 2 | Son | — | Iowa |
| 13 | John H. Lyons | 37 | Head | Laborer Section | Nebraska |
| 14 | Helen H. Lyons | 30 | Wife | Clerk | Iowa |
| 15 | Roland P. Lyons | 13 | Son | — | Iowa |
| 16 | Grace D. Lyons | 11 | Daughter | — | Iowa |
| 17 | James D. Lyons | 8 | Son | — | Iowa |
| 18 | Myrna Jean Lyons | 6 | Daughter | — | Iowa |
| 19 | Wayne A. Lyons | 5 | Son | — | Iowa |
| 20 | Lyle E. Lyons | 3 | Son | — | Iowa |
| 21 | Charlotte A. Lyons | 1 | Daughter | — | Iowa |
| 22 | Willard O. Wiggs | 21 | Head | Section Laborer | Iowa |
| 23 | Hazel L. Wiggs | 20 | Wife | Cook Dishwasher | Iowa |
| 24 | Birdie V. James | 66 | Head | — | Iowa |
| 25 | Hiram T. Sigler | 81 | Brother | — | Iowa |
| 26 | Jessie Shanty | 52 | Head | — | Iowa |
| 27 | Earnest W. Shanty | 57 | Brother | Laborer | Iowa |
| 28 | Walter Shanty | 55 | Brother | Laborer | Iowa |
| 29 | John A. Jones | 64 | Head | Carpenter | Missouri |
| 30 | Carolina E. Jones | 60 | Wife | — | Missouri |
| 31 | Floyd W. Wyland | 39 | Head | Trucker | Illinois |
| 32 | Anna M. Wyland | 39 | Wife | — | Iowa |
| 33 | Margaret Ann Wyland | 13 | Daughter | — | Iowa |
| 34 | Betty R. Wyland | 11 | Daughter | — | Iowa |
| 35 | Maxine Jean Wyland | 7 | Daughter | — | Iowa |
| 36 | Marilyn F. Wyland | 1 | Daughter | — | Iowa |
| 37 | Earl V. Hayward | 53 | Head | Plumber | Iowa |
| 38 | Ruth L. Hayward | 48 | Wife | — | Iowa |
| 39 | Norbert D. Hayward | 21 | Son | Laborer | Nebraska |
| 40 | Elray D. Hayward | 17 | Son | Clerk | Nebraska |
Related Census Records
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)