SC
Sarah Cook — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this Sarah Cook across the 1920, 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 2-person household.
Age 68
b. ~1872
Female
Head
Born: Kentucky
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | Cook |
| Given Name | Sarah A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| 1935 Residence (City) | East Moline City |
| 1935 Residence (County) | Rock Island |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | East Moline City |
| Est. Birth Year | ~1872 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Sarah | Age | Birth yr |
|---|---|---|---|---|
| Sarah Cook | Head | — | 68 | ~1872 |
| William Cook | Son | — | 45 | ~1895 |
Census Appearances
1920
Rock Island, …
Spouse, age 47
Rock Island, Illinois · implied b. ~1873 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Sarah |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Rock Island, …
Spouse, age 57
Rock Island, Illinois · implied b. ~1873 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cook |
| Given Name | Sarah |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 17 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Rock-Island-County, Illinois
Head, age 68
Rock-Island-County, Illinois · implied b. ~1872 — 2 household members
| Surname | Cook |
| Given Name | Sarah A |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Kentucky |
| 1935 Residence (City) | East Moline City |
| 1935 Residence (County) | Rock Island |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Sarah Cook across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Sarah Cook
Head · 1940 · age 68 · b. ~1872 · Illinois
★ 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 — Rock-Island-County, Illinois
Open full size
1940 US Federal Census — Rock-Island-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00874-00351)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wayne E Creek | 9 | son | — | Iowa |
| 42 | Carlene M Creek | 6 | daughter | — | Iowa |
| 43 | Russell A Jackson | 33 | Head | Molder Helper | Illinois |
| 44 | Lucille A Jackson | 33 | wife | — | Illinois |
| 45 | Theodore A Jackson | 7 | son | — | Illinois |
| 46 | Larry A Jackson | 4 | son | — | Illinois |
| 47 | Melvin Carlson | 51 | Head | — | Illinois |
| 48 | Althea S Carlson | 25 | daughter | Grade School Teacher | Illinois |
| 49 | Marian E Carlson | 24 | daughter | Grade School Teacher | Illinois |
| 50 | Edward F Warren | 24 | Head | Laborer | Illinois |
| 51 | Charlotte Warren | 22 | wife | — | Illinois |
| 52 | Sarah A Cook THIS PERSON | 68 | Head | — | Kentucky |
| 53 | William Th Cook | 45 | son | Laborer | Oklahoma |
| 54 | Carleton Hedstrom | 52 | Head | Metal Sheet Worker | Illinois |
| 55 | Emma Hedstrom | 48 | wife | — | Illinois |
| 56 | Leanne Hedstrom | 13 | daughter | — | Iowa |
| 57 | Lemoine Hedstrom | 10 | son | — | Iowa |
| 58 | Bernard Hedstrom | 5 | son | — | Iowa |
| 59 | Bonnie Lou Hedstrom | 1 | daughter | — | Illinois |
| 60 | Elizabeth A Grace | 40 | Head | — | Illinois |
| 61 | Roy W Grace | 18 | son | Laborer | Illinois |
| 62 | Daniel C Grace | 15 | son | — | Illinois |
| 63 | Dorothy S Grace | 13 | daughter | — | Illinois |
| 64 | Raymond P Grace | 5 | son | — | Illinois |
| 65 | Chester E Carlson | 33 | Head | Office Clerk | Illinois |
| 66 | Dorothy Carlson | 30 | wife | — | Illinois |
| 67 | Rene A Carlson | 5 | son | — | Iowa |
| 68 | Clarence O Schowland | 47 | Head | Garage Manager | Iowa |
| 69 | Hazel S Schowland | 42 | wife | — | Illinois |
| 70 | Robert C Schowland | 15 | son | — | Iowa |
| 71 | Jeannette Ann Schowland | 13 | daughter | — | Illinois |
| 72 | Marilyn Schowland | 10 | daughter | — | Illinois |
| 73 | John A Rasmussen | 69 | Head | Farmer | Illinois |
| 74 | Mary C Rasmussen | 56 | wife | — | Illinois |
| 75 | Nina Rasmussen | 36 | daughter | Stenographer | Illinois |
| 76 | Alice Rasmussen | 32 | daughter | — | Illinois |
| 77 | Kenneth Rasmussen | 22 | son | Molder Helper | Illinois |
| 78 | Howard Goodwin | 38 | lodger | Grain Elevator Man | Kansas |
| 79 | Lloyd F Bryan | 28 | Head | Molder | Illinois |
| 80 | Ruth N Bryan | 21 | wife | — | 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)