MC
Margaret Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Crawford-County, Illinois
Our Model Tree links this Margaret Cooper across the 1920, 1930 and 1940 US Censuses in Crawford-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 4-person household.
Age 50
b. ~1890
Female
Spouse
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Crawford-County, Illinois |
| Surname | Cooper |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Robinson City |
| 1935 Residence (County) | Crawford |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Robinson City |
| Est. Birth Year | ~1890 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Carolyn Cooper | Daughter | — | 25 | ~1915 |
| Harry Cooper | Head | — | 60 | ~1880 |
| James Cooper | Son | — | 28 | ~1912 |
| Margaret Cooper | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Crawford, Illinois
Spouse, age 30
Crawford, Illinois · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Crawford, Illinois
Other, age 40
Crawford, Illinois · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Margaret R. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 24 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Crawford-County, Illinois
Spouse, age 50
Crawford-County, Illinois · implied b. ~1890 — 4 household members
| Surname | Cooper |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Robinson City |
| 1935 Residence (County) | Crawford |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Margaret Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Cooper
Spouse · 1940 · age 50 · b. ~1890 · 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 — Crawford-County, Illinois
Open full size
1940 US Federal Census — Crawford-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00791-00467)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wallace Critchfield | 37 | Head | Inventory Clerk | Ohio |
| 42 | Norma Jean Critchfield | 7 | Daughter | — | Ohio |
| 43 | Imogene Harper | 32 | Head | — | Illinois |
| 44 | Elizabeth Harper | 5 | Daughter | — | Illinois |
| 45 | Estelle Harper | 5 | Daughter | — | Illinois |
| 46 | Agile O. Chastain | 35 | Head | Pastor | Indiana |
| 47 | Cecil Chastain | 35 | Wife | — | Indiana |
| 48 | Mary Jean Chastain | 4 | Daughter | — | Indiana |
| 49 | Wm F. Brush | 30 | Head | Inventory Clerk | Illinois |
| 50 | Frances Brush | 27 | Wife | Clerk | Illinois |
| 51 | Elmer C. Warner | 57 | Head | Lawyer | Illinois |
| 52 | Bertha W. Warner | 58 | Wife | — | Pennsylvania |
| 53 | Martha Alice Warner | 26 | Daughter | — | Illinois |
| 54 | Kate O. Ferguson | 67 | Head | — | Illinois |
| 55 | S. P. Hicks | 72 | Head | Music Teacher | Illinois |
| 56 | Nellie M. Hicks | 71 | Wife | Seamstress | Illinois |
| 57 | Blanche Carroll | 61 | Lodger | Home Work | Illinois |
| 58 | Nellie Newlin | 73 | Lodger | — | Illinois |
| 59 | Ray Runyan | 53 | Head | Hatchery Operator | Illinois |
| 60 | Alda S. Runyan | 53 | Wife | — | Tennessee |
| 61 | Wayne Runyan | 9 | Grand-son | — | Illinois |
| 62 | John J. Markby | 70 | Head | Retired Mailman | Illinois |
| 63 | Ella M. Markby | 69 | Wife | — | Illinois |
| 64 | Nora O. Barker | 69 | Head | — | Illinois |
| 65 | Martha Marie Wager | 27 | Niece | Stenographer | Illinois |
| 66 | Harry O. Cooper | 60 | Head | Druggist | Illinois |
| 67 | Margaret Cooper THIS PERSON | 50 | Wife | — | Ohio |
| 68 | James Cooper | 28 | Son | Druggist | Illinois |
| 69 | Carolyn Cooper | 25 | Daughter | — | Illinois |
| 70 | W. O. Wood | 52 | Head | Truck Driver | Illinois |
| 71 | Glenn Wood | 47 | Wife | — | Illinois |
| 72 | Carolyn Wood | 19 | Daughter | — | Illinois |
| 73 | Iris Wood | 17 | Daughter | — | Illinois |
| 74 | A. A. Zike | 68 | Head | Machinist | Illinois |
| 75 | Cora Zike | 63 | Wife | — | Indiana |
| 76 | Ross E. O. Biggs | 41 | Head | — | Illinois |
| 77 | William Biggs | 11 | Son | — | Illinois |
| 78 | Edwin Biggs | 4 | Son | — | Illinois |
| 79 | Casal Cox | 32 | Lodger | Lawyer | 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)