JC
John Coyle — 1940 US Census Record
Model Tree available1940 United States Federal Census · Genesee-County, Michigan
Our Model Tree links this John Coyle across the 1920, 1930 and 1940 US Censuses in Genesee-County, Michigan (XGBoost, ~Confirmed), with identified parents Edward & Margaret — first a son (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Genesee-County, Michigan |
| Surname | Coyle |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Flint |
| 1935 Residence (County) | Genesee |
| Additional Details | |
| Occupation | Factory worker |
| Industry | Automobile Body Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Factory Worker |
| Township / Ward | Flint |
| Est. Birth Year | ~1917 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Winnifred Coyle | Daughter | — | 18 | ~1922 |
| Margaret Coyle | Spouse | — | 46 | ~1894 |
| Patrick Lacey | Other | — | 65 | ~1875 |
| John Coyle | Son | — | 23 | ~1917 |
| Thomas Coyle | Son | — | 20 | ~1920 |
| Edward Coyle | Head | — | 53 | ~1887 |
Census Appearances
1920
Genesee, Michigan
Son, age 3
Genesee, Michigan · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coyle |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Mother Tongue | English |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Genesee, Michigan
Son, age 13
Genesee, Michigan · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Coyle |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Genesee-County, Michigan
Son, age 23
Genesee-County, Michigan · implied b. ~1917 — 6 household members
| Surname | Coyle |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Flint |
| 1935 Residence (County) | Genesee |
| Occupation | Factory worker |
| Industry | Automobile Body Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| 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 John Coyle across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Coyle (~0.92 confidence) and mother Margaret Coyle (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Coyle
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Margaret Coyle
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Coyle
Son · 1940 · age 23 · b. ~1917 · Michigan
★ You are viewing this record
Sibling
Thomas Coyle
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Winnifred Coyle
Sibling · 1940 · age 18
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 — Genesee-County, Michigan
Open full size
1940 US Federal Census — Genesee-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01896-00888)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cecil W Stewart | 35 | Head | Vender | Michigan |
| 2 | Irene E Stewart | 23 | Wife | — | Michigan |
| 3 | Daisy Fordney | 43 | Head | Foreman | Michigan |
| 4 | Edsel Fordney | 39 | Son | — | Michigan |
| 5 | Clyde Howe | 32 | Head | Factory Worker | Illinois |
| 6 | Elizabeth Howe | 26 | Wife | — | New York |
| 7 | William Clark | 35 | Head | Factory Worker | Michigan |
| 8 | Grace Clark | 34 | Wife | — | Michigan |
| 9 | Willie P Clark | 0 | Son | — | Michigan |
| 10 | Raybert White | 37 | Head | Branch Manager | Michigan |
| 11 | Vera White | 34 | Wife | — | Michigan |
| 12 | Robert A White | 13 | Son | — | Michigan |
| 13 | Donald E White | 9 | Son | — | Michigan |
| 14 | Neil Blackburn | 37 | Lodger | Owner Manager | Michigan |
| 15 | Edward Coyle | 53 | Head | Factory Worker | Scotland |
| 16 | Margaret Coyle | 46 | Wife | — | Scotland |
| 17 | John Coyle THIS PERSON | 23 | Son | Factory Worker | Michigan |
| 18 | Thomas Coyle | 20 | Son | New Worker | Michigan |
| 19 | Winnifred Coyle | 18 | Daughter | — | Michigan |
| 20 | Patrick Lacey | 65 | Lodger | Carpenter | Scotland |
| 21 | Robert Roy Kniger | 33 | Head | Factory Worker | Michigan |
| 22 | Bette I Kniger | 27 | Wife | — | Michigan |
| 23 | Bertha Goodall | 34 | Sister-in-law | Factory Worker | Michigan |
| 24 | Walter Heddy | 26 | Head | Factory Worker | Illinois |
| 25 | Dorothy Heddy | 23 | Wife | Housekeeper | Michigan |
| 26 | Barbara Heddy | 5 | Daughter | — | Michigan |
| 27 | Charles Heddy | 3 | Son | — | Michigan |
| 28 | Betty J Heddy | 1 | Daughter | — | Michigan |
| 29 | Vivian J Donovan | 43 | Head | Factory Worker | Michigan |
| 30 | Sadie F Donovan | 51 | Wife | Factory Worker | Michigan |
| 31 | Sara Henery | 60 | Head | — | Michigan |
| 32 | John B Van Conant | 55 | Lodger | Factory Worker | Michigan |
| 33 | Leil Flower | 32 | Head | Factory Worker | Michigan |
| 34 | Lucile Flower | 33 | Wife | — | Ohio |
| 35 | Thomas E Teagert | 38 | Head | Factory Worker | Canada |
| 36 | Mae Teagert | 37 | Wife | — | Canada |
| 37 | Kenneth Teagert | 19 | Son | Pin Setter | Canada |
| 38 | Earl Teagert | 17 | Son | — | Canada |
| 39 | David Teagert | 15 | Son | — | Michigan |
| 40 | Leslie J Walker | 39 | Head | Manager Retail | Michigan |
Pedigree Summary
John + 2 siblings
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)