RM
Robert Mccormick — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Benton-County, Iowa
Our Model Tree links this Robert Mccormick across the 1930 and 1940 US Censuses in Benton-County, Iowa (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Benton-County, Iowa |
| Surname | McCormick |
| Given Name | Robert G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Eden Twp |
| 1935 Residence (County) | Benton |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Eden Twp |
| Est. Birth Year | ~1924 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Mccormick | Son | — | 16 | ~1924 |
| Florence Mccormick | Spouse | — | 42 | ~1898 |
| Jeanean Mccormick | Daughter | — | 8 | ~1932 |
| Bernadean Mccormick | Daughter | — | 18 | ~1922 |
| Earl Mccormick | Head | — | 46 | ~1894 |
| Gene Mccormick | Son | — | 10 | ~1930 |
| Leyron Mccormick | Son | — | 19 | ~1921 |
| Cletus Mccormick | Son | — | 17 | ~1923 |
Census Appearances
1930
Benton, Iowa
Son, age 5
Benton, Iowa · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormick |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Idaho |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Benton-County, Iowa
Son, age 16
Benton-County, Iowa · implied b. ~1924 — 8 household members
| Surname | McCormick |
| Given Name | Robert G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Eden Twp |
| 1935 Residence (County) | Benton |
| Highest Grade | H 2 |
| 1935 Residence | Same House |
| 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 Mccormick across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Mccormick
Son · 1940 · age 16 · b. ~1924 · Iowa
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Sibling
Bernadean Mccormick
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leyron Mccormick
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanean Mccormick
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cletus Mccormick
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gene Mccormick
Sibling · 1940 · age 10
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 — Benton-County, Iowa
Open full size
1940 US Federal Census — Benton-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01138-00192)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Walter G Geiken | 30 | Head | Farmer | Iowa |
| 42 | Eileen E Geiken | 27 | Wife | — | Iowa |
| 43 | Barbara J Geiken | 2 | Daughter | — | Iowa |
| 44 | Gordon C Geiken | 0 | Son | — | Iowa |
| 45 | Robert W Beater | 30 | Head | Laborer | Iowa |
| 46 | Esther Beater | 25 | Wife | — | Iowa |
| 47 | Lenard E Rapp | 8 | Stepson | — | Iowa |
| 48 | Robert, Jr Beater | 1 | Son | — | Iowa |
| 49 | William H Beater | 65 | Father | — | Iowa |
| 50 | Charles F Mccormick | 30 | Head | Farmer | Iowa |
| 51 | Cecelia Mccormick | 22 | Wife | — | Iowa |
| 52 | Bernard Borsen | 19 | Hired Hand | Laborer | So Dakota |
| 53 | Theodore A Hokanson | 49 | Head | Farmer | Sweden |
| 54 | Betty H Hokanson | 51 | Wife | — | Sweden |
| 55 | Astrid B Hokanson | 27 | Daughter | Stenographer | Iowa |
| 56 | Arthur M Johnson | 27 | Hired Hand | Laborer | Iowa |
| 57 | Earl J Mccormick | 46 | Head | Farmer | Iowa |
| 58 | Florence H Mccormick | 42 | Wife | — | Iowa |
| 59 | Leyron E Mccormick | 19 | Son | Farmer | Iowa |
| 60 | Bernadean Mccormick | 18 | Daughter | Housekeeper | Iowa |
| 61 | Cletus E Mccormick | 17 | Son | — | Iowa |
| 62 | Robert G Mccormick THIS PERSON | 16 | Son | — | Iowa |
| 63 | Gene C Mccormick | 10 | Son | — | Iowa |
| 64 | Jeanean M Mccormick | 8 | Daughter | — | Iowa |
| 65 | Elmer Broender | 44 | Head | Farmer | Iowa |
| 66 | Rose A Broender | 42 | Wife | — | Iowa |
| 67 | Phyllis R Broender | 10 | Daughter | — | Iowa |
| 68 | George Good | 21 | Hired Hand | Laborer | Iowa |
| 69 | Lucille R Good | 21 | Daughter | — | Iowa |
| 70 | Lloyd J Werning | 31 | Head | Farmer | Iowa |
| 71 | Viola M Werning | 24 | Wife | — | Iowa |
| 72 | Rossell D Werning | 3 | Son | — | Iowa |
| 73 | Claus Mueller | 42 | Hired Hand | Laborer | Germany |
| 74 | Victor J Schminke | 28 | Head | Farmer | Iowa |
| 75 | Hazel C Schminke | 26 | Wife | — | Iowa |
| 76 | Loreen A Schminke | 2 | Daughter | — | Iowa |
| 77 | Louis F Fix | 47 | Head | Farmer | Iowa |
| 78 | Ema M Fix | 44 | Wife | — | Iowa |
| 79 | Paul Wm Fix | 15 | Son | — | Iowa |
| 80 | John E Fix | 14 | Son | — | 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)