WC
William Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Livingston-County, Michigan
Our Model Tree links this William Cooper across the 1920, 1930 and 1940 US Censuses in Livingston-County, Michigan (XGBoost, ~Confirmed), with identified parents J & Mina — first a head (b.~1900), then head of a 7-person household.
Age 40
b. ~1900
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Livingston-County, Michigan |
| Surname | Cooper |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Howell City |
| 1935 Residence (County) | Livingston |
| Additional Details | |
| Occupation | Fireman |
| Industry | Postal service |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 1260 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Fireman |
| Township / Ward | Howell City |
| Est. Birth Year | ~1900 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Cooper | Daughter | — | 12 | ~1928 |
| Priscilla Cooper | Daughter | — | 13 | ~1927 |
| Geraldine Cooper | Daughter | — | 10 | ~1930 |
| Patricia Cooper | Daughter | — | 13 | ~1927 |
| William Cooper | Head | — | 40 | ~1900 |
| William Cooper | Son | — | 14 | ~1926 |
| Ruth Cooper | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Livingston, Michigan
Son, age 20
Livingston, Michigan · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | Laborer |
| Industry | Electric Light Plant |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Livingston, Michigan
Head, age 30
Livingston, Michigan · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 25 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | Salesman |
| Industry | Creamery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2000 |
| Radio Set | R |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Livingston-County, Michigan
Head, age 40
Livingston-County, Michigan · implied b. ~1900 — 7 household members
| Surname | Cooper |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Howell City |
| 1935 Residence (County) | Livingston |
| Occupation | Fireman |
| Industry | Postal service |
| Class of Worker | GW |
| Hours Worked | 60 |
| Income (1939) | 1260 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 William Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father J Cooper (~0.92 confidence) and mother Mina Cooper (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
J Cooper
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Mina Cooper
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Cooper
Head · 1940 · age 40 · b. ~1900 · Michigan
★ 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 — Livingston-County, Michigan
Open full size
1940 US Federal Census — Livingston-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01780-00399)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gerald Hageman | 11 | Son | — | Michigan |
| 2 | Louise J. Whitaker | 70 | Mother in law | — | England |
| 3 | Peter Gregory | 73 | Head | — | Michigan |
| 4 | Addie Jubb | 64 | Head | — | Michigan |
| 5 | Claribelle Jubb | 37 | Daughter | Stenographer | Michigan |
| 6 | Andrew Parker | 64 | Head | Machine Shop | Michigan |
| 7 | Emma Parker | 62 | Wife | — | Rhode Island |
| 8 | William Parker | 24 | Son | Machine Operator | Michigan |
| 9 | Emma Sweet | 91 | Lodger | — | Michigan |
| 10 | Fred Kneap | 71 | Head | — | Michigan |
| 11 | Xavier Kneap | 66 | Wife | Washerwoman | Michigan |
| 12 | John H. Stewart | 38 | Head | Lineman | Michigan |
| 13 | Fern Stewart | 38 | Wife | — | Illinois |
| 14 | Jean Stewart | 13 | Daughter | — | Michigan |
| 15 | William J. Cooper THIS PERSON | 40 | Head | Fireman | Michigan |
| 16 | Ruth M. Cooper | 35 | Wife | — | Michigan |
| 17 | William Cooper | 14 | Son | — | Michigan |
| 18 | Priscilla Cooper | 13 | Daughter | — | Michigan |
| 19 | Patricia Cooper | 13 | Daughter | — | Michigan |
| 20 | Elizabeth Ann Cooper | 12 | Daughter | — | Michigan |
| 21 | Geraldine Cooper | 10 | Daughter | — | Michigan |
| 22 | Charles Hathaway | 33 | Head | Service Man | Michigan |
| 23 | Evelyn Hathaway | 29 | Wife | — | Michigan |
| 24 | Betty Jean Hathaway | 6 | Daughter | — | Michigan |
| 25 | Sharon Hathaway | 3 | Son | — | Michigan |
| 26 | Harold R. Ward | 28 | Head | Clerk & Sales | Michigan |
| 27 | Helen Ward | 30 | Wife | — | Michigan |
| 28 | James Ward | 7 | Son | — | Michigan |
| 29 | Janice Ward | 6 | Daughter | — | Michigan |
| 30 | William Ward | 0 | Son | — | Michigan |
| 31 | Louis Knay | 61 | Head | Memorial Artist | New York |
| 32 | Luna Knay | 66 | Wife | — | Michigan |
| 33 | Iva Draper | 52 | Head | — | Michigan |
| 34 | Betty Jean Draper | 14 | Daughter | — | Michigan |
| 35 | Harry O. Lounsberry | 31 | Head | Engineer | Michigan |
| 36 | Doris Lounsberry | 27 | Wife | — | Michigan |
| 37 | Shirley Ann Lounsberry | 4 | Daughter | — | Michigan |
| 38 | Jane Beth Lounsberry | 2 | Daughter | — | Michigan |
| 39 | Comet Or David | 52 | Head | — | Michigan |
| 40 | George H. Mc Cullom | 38 | Lodger | Mechanic | Michigan |
Pedigree Summary
William
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)