AC
Albert Cooper — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mchenry-County, Illinois
Our Model Tree links this Albert Cooper across the 1930 and 1940 US Censuses in Mchenry-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 11-person household.
Age 11
b. ~1929
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mchenry-County, Illinois |
| Surname | Cooper |
| Given Name | Albert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Solon Mills |
| 1935 Residence (County) | McHenry |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Solon Mills |
| Est. Birth Year | ~1929 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Albert | Age | Birth yr |
|---|---|---|---|---|
| Albert Cooper | Son | — | 11 | ~1929 |
| Edith Cooper | Spouse | — | 45 | ~1895 |
| Donald Cooper | Son | — | 6 | ~1934 |
| James Cooper | Son | — | 13 | ~1927 |
| Ethel Cooper | Daughter | — | 20 | ~1920 |
| Larry Cooper | Son | — | 7 | ~1933 |
| Leslie Cooper | Head | — | 45 | ~1895 |
| Annatte Cooper | Daughter | — | 2 | ~1938 |
| Frances Cooper | Daughter | — | 16 | ~1924 |
| Lucreta Cooper | Daughter | — | 17 | ~1923 |
| Kenneth Cooper | Son | — | 3 | ~1937 |
Census Appearances
1930
Mchenry, Illinois
Son, age 1
Mchenry, Illinois · implied b. ~1929 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Albert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Michigan |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mchenry-County, Illinois
Son, age 11
Mchenry-County, Illinois · implied b. ~1929 — 11 household members
| Surname | Cooper |
| Given Name | Albert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Solon Mills |
| 1935 Residence (County) | McHenry |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Albert Cooper across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Albert Cooper
Son · 1940 · age 11 · b. ~1929 · Illinois
★ You are viewing this record
Sibling
Frances Cooper
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Cooper
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucreta Cooper
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Cooper
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annatte Cooper
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ethel Cooper
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Larry Cooper
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Cooper
Sibling · 1940 · age 6
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 — Mchenry-County, Illinois
Open full size
1940 US Federal Census — Mchenry-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00840-01047)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Loren Bonnar | 35 | Head | Labor | Illinois |
| 2 | Ervin Bonnar | 5 | Son | — | Illinois |
| 3 | Laverne Cole | 25 | Hired Man | Labor | Illinois |
| 4 | Arnold May | 26 | Head | Farmer | Illinois |
| 5 | Isabelle May | 23 | Wife | — | Illinois |
| 6 | John Mcdonald | 69 | Head | Farmer | Illinois |
| 7 | Rollan Mcdonald | 43 | Son | Farmer | Illinois |
| 8 | John W Mcdonald | 34 | Son | Lineman | Illinois |
| 9 | Margaret Fillmore | 25 | Maid | Road Comm | Illinois |
| 10 | Joston Jackson | 58 | Hired Man | Housekeeper | Illinois |
| 11 | William Stilling | 40 | Head | Labor | Illinois |
| 12 | Tillie Stilling | 38 | Wife | Farmer | Illinois |
| 13 | Rose Mary Stilling | 15 | Daughter | — | Illinois |
| 14 | Morris Stilling | 13 | Son | — | Illinois |
| 15 | Robert Stilling | 11 | Son | — | Illinois |
| 16 | Joan Ann Stilling | 9 | Daughter | — | Illinois |
| 17 | Patricia Stilling | 7 | Daughter | — | Illinois |
| 18 | Nancy Stilling | 6 | Daughter | — | Illinois |
| 19 | Billy Stilling | 1 | Son | — | Illinois |
| 20 | Eustace W Nelson | 52 | Head | Farmer | Sweden |
| 21 | Carl Nelson | 66 | Brother | Farmer | Sweden |
| 22 | Ernst L Snyder | 44 | Head | Farmer | Nebraska |
| 23 | Edith Snyder | 41 | Wife | — | Illinois |
| 24 | Harold Snyder | 20 | Son | Waiter | Illinois |
| 25 | Francis Snyder | 16 | Son | — | Illinois |
| 26 | Ernst Snyder | 10 | Son | — | Illinois |
| 27 | Raymond Snyder | 6 | Son | — | Illinois |
| 28 | Bonnie Lou Snyder | 5 | Daughter | — | Illinois |
| 29 | Leslie Cooper | 45 | Head | Farmer | Illinois |
| 30 | Edith Cooper | 45 | Wife | — | Michigan |
| 31 | Ethel Cooper | 20 | Daughter | Housework | Illinois |
| 32 | Lucreta Cooper | 17 | Daughter | — | Illinois |
| 33 | Frances Cooper | 16 | Daughter | — | Illinois |
| 34 | James Cooper | 13 | Son | — | Illinois |
| 35 | Albert Cooper THIS PERSON | 11 | Son | — | Illinois |
| 36 | Larry Cooper | 7 | Son | — | Illinois |
| 37 | Donald Cooper | 6 | Son | — | Illinois |
| 38 | Kenneth Cooper | 3 | Son | — | Illinois |
| 39 | Annatte Cooper | 2 | Daughter | — | Illinois |
| 40 | Edward Carr | 56 | Head | Farm Manager | 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)