EC
Earl Cook — 1940 US Census Record
Model Tree available1940 United States Federal Census · Dakota-County, Minnesota
Our Model Tree links this Earl Cook across the 1920, 1930 and 1940 US Censuses in Dakota-County, Minnesota (XGBoost, ~Confirmed), with identified parents L & Lena — first a head (b.~1904), then head of a 5-person household.
Age 36
b. ~1904
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dakota-County, Minnesota |
| Surname | Cook |
| Given Name | Earl A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Farmington |
| 1935 Residence (County) | Dakota |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Empire |
| Est. Birth Year | ~1904 |
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 Earl | Age | Birth yr |
|---|---|---|---|---|
| Marion Cook | Spouse | — | 35 | ~1905 |
| Earl Cook | Head | — | 36 | ~1904 |
| Ellen Cook | Daughter | — | 12 | ~1928 |
| Melvin Farham | Other | — | 25 | ~1915 |
| George Cook | Son | — | 9 | ~1931 |
Census Appearances
1920
Dakota, Minnesota
Son, age 16
Dakota, Minnesota · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Earl |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Dakota, Minnesota
Head, age 26
Dakota, Minnesota · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Earl A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 22 |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Occupation | Farmer |
| Industry | Own farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Radio Set | R |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Dakota-County, Minnesota
Head, age 36
Dakota-County, Minnesota · implied b. ~1904 — 5 household members
| Surname | Cook |
| Given Name | Earl A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Farmington |
| 1935 Residence (County) | Dakota |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 1 |
| 1935 Residence | Minnesota |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Earl Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father L Cook (~0.92 confidence) and mother Lena Cook (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
L Cook
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Lena Cook
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Earl Cook
Head · 1940 · age 36 · b. ~1904 · Minnesota
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Dakota-County, Minnesota
Open full size
1940 US Federal Census — Dakota-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01917-00092)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Richard Davis | 6 | Son | — | Minnesota |
| 42 | Bernard Davis | 5 | Son | — | Minnesota |
| 43 | Lawrence Jr. Davis | 4 | Son | — | Minnesota |
| 44 | Gerald Davis | 2 | Son | — | Minnesota |
| 45 | Albert Ames | 22 | Lodger | Labor | Minnesota |
| 46 | John A. Staff | 67 | Head | Farmer | Minnesota |
| 47 | Albert D. Staff | 44 | Head | Farmer | Minnesota |
| 48 | Viola Staff | 45 | Wife | House Wife | Minnesota |
| 49 | Lester Staff | 20 | Son | Farming | Minnesota |
| 50 | Merlyne Staff | 11 | Daughter | — | Minnesota |
| 51 | Evelyne Staff | 9 | Daughter | — | Minnesota |
| 52 | Peter Snyder | 30 | Lodger | Labor | New York |
| 53 | E. D. O. Staff | 61 | Head | Farmer | Minnesota |
| 54 | Mittildia Staff | 59 | Wife | House Wife | Minnesota |
| 55 | Le Roy Staff | 27 | Son | Farmer | Minnesota |
| 56 | Martin A. Staff | 52 | Head | Farmer | Minnesota |
| 57 | Markie Anne Staff | 63 | Sister | House Keeper | Minnesota |
| 58 | Nelson Brumley | 25 | Lodger | Labor | Minnesota |
| 59 | Earl A. Cook THIS PERSON | 36 | Head | Farmer | Minnesota |
| 60 | Marion Cook | 35 | Wife | House Wife | Minnesota |
| 61 | Ellen Cook | 12 | Daughter | — | Minnesota |
| 62 | George Cook | 9 | Son | — | Minnesota |
| 63 | Melvin Farham | 25 | Lodger | Labor | South Dakota |
| 64 | Maynard E. Mick | 39 | Head | Farmer | Iowa |
| 65 | Hazel Mick | 34 | Wife | House Wife | Iowa |
| 66 | Anne Mick | 12 | Daughter | — | Minnesota |
| 67 | Kenneth Mick | 10 | Son | — | Minnesota |
| 68 | Bernadine Mick | 8 | Daughter | — | Minnesota |
| 69 | Otto D. Jorgenson | 47 | Head | Farmer | Denmark |
| 70 | Marie Jorgenson | 45 | Wife | House Wife | Minnesota |
| 71 | Harrett Jorgenson | 5 | Daughter | — | Minnesota |
| 72 | Margaret Jorgenson | 14 | Daughter | — | Minnesota |
| 73 | Dorothy Jorgenson | 17 | Daughter | — | Minnesota |
| 74 | Harold Walters | 24 | Lodger | Labor | South Dakota |
| 75 | Henry A. Klonis | 72 | Head | Farmer | Minnesota |
| 76 | Alois Klonis | 24 | Daughter | House Keeper | Minnesota |
| 77 | Richard Hupen | 36 | Lodger | Labor | Minnesota |
| 78 | Wife Mabel | None | F | House Work | — |
| 79 | Renton Mabel | 7 | Son | — | Minnesota |
| 80 | Barbara Mabel | 5 | Daughter | — | Minnesota |
Pedigree Summary
Earl
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)