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John Byrne — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this John Byrne across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 7-person household.
Age 55
b. ~1885
Male
Head
Born: Canada
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Byrne |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Canada |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Patrolman |
| Industry | City police |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 2600 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
| Occupation | Patrolman |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1885 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Byrne | Spouse | — | 55 | ~1885 |
| John Byrne | Head | — | 55 | ~1885 |
| Margaret Byrne | Daughter | — | 19 | ~1921 |
| Lorna Byrne | Daughter | — | 11 | ~1929 |
| Marion Byrne | Daughter | — | 22 | ~1918 |
| Mary Byrne | Daughter | — | 20 | ~1920 |
| Thomas Byrne | Son | — | 24 | ~1916 |
Census Appearances
1920
Wayne, Michigan
Head, age 34
Wayne, Michigan · implied b. ~1886 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrne |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Canada |
| Year of Immigration | 1909 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Canada |
| Mother's Birthplace | Canada |
| Occupation | Machinist |
| Industry | Motor Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
1930
Wayne, Michigan
Head, age 44
Wayne, Michigan · implied b. ~1886 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Byrne |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Canada |
| Naturalization Status | Naturalized |
| Year of Immigration | 1907 |
| Age at First Marriage | 28 |
| Father's Birthplace | Canada |
| Mother's Birthplace | New York |
| Occupation | Body finisher |
| Industry | Auto factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 9000 |
| Radio Set | R |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
1940
Wayne-County, Michigan
Head, age 55
Wayne-County, Michigan · implied b. ~1885 — 7 household members
| Surname | Byrne |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Canada |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Occupation | Patrolman |
| Industry | City police |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 2600 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Canada |
| Birthplace (normalized) | canada |
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 Byrne across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Byrne
Head · 1940 · age 55 · b. ~1885 · Michigan
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01881-00325)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John G. Uhl | 65 | Head | Janitor | Michigan |
| 42 | Louise Uhl | 64 | Wife | — | Michigan |
| 43 | Walter Uhl | 39 | Son | Tool Crib | Michigan |
| 44 | Elmer Uhl | 34 | Son | Lens Grinder | Michigan |
| 45 | Wuebben Lloyd Uhl | 37 | Son in law | — | Michigan |
| 46 | Ella Uhl | 37 | daughter | — | Michigan |
| 47 | Alfred Nuffer | 57 | head | Watchman | Germany |
| 48 | Mary Nuffer | 54 | Wife | — | Michigan |
| 49 | Esther Nuffer | 21 | daughter | Typist | Michigan |
| 50 | Gladys Nuffer | 17 | daughter | — | Michigan |
| 51 | Shirly Nuffer | 15 | daughter | — | Michigan |
| 52 | Lydia Boyce | 65 | lodger | — | Canada |
| 53 | Herbert Krug | 51 | head | Watch Maker & Jeweler | Michigan |
| 54 | Bernice Krug | 49 | Wife | — | Michigan |
| 55 | Herbert Jr. Krug | 19 | Son | Shipping Clerk | Michigan |
| 56 | Dorothy Krug | 18 | daughter | — | Michigan |
| 57 | Jack Krug | 16 | Son | — | Michigan |
| 58 | Betty Krug | 14 | daughter | — | Michigan |
| 59 | Kathryn Krug | 13 | daughter | — | Michigan |
| 60 | Shirly Krug | 9 | daughter | — | Michigan |
| 61 | Donald Krug | 7 | Son | — | Michigan |
| 62 | Marguerite Kirsten | 46 | Sister in law | — | Michigan |
| 63 | Harvey Anderson | 53 | head | Inspector | Illinois |
| 64 | Grace Anderson | 49 | Wife | — | Michigan |
| 65 | Mary C. Sullivan | 51 | Sister in law | Machine Oper | Michigan |
| 66 | Virginia Sheuer | 21 | lodger | Clerical | Michigan |
| 67 | John Byrne THIS PERSON | 55 | head | Patrolman | Canada |
| 68 | Margaret Byrne | 55 | Wife | — | Michigan |
| 69 | Thomas Byrne | 24 | Son | Fire Man | Michigan |
| 70 | Marion Byrne | 22 | daughter | Typist | Michigan |
| 71 | Mary Irene Byrne | 20 | daughter | Finisher | Michigan |
| 72 | Margaret Byrne | 19 | daughter | — | Michigan |
| 73 | Lorna Byrne | 11 | daughter | — | Michigan |
| 74 | Ludolph Lingohr | 36 | head | Salesman | Michigan |
| 75 | Elizabeth Lingohr | 35 | Wife | — | Michigan |
| 76 | Betty Lou Lingohr | 15 | daughter | — | Michigan |
| 77 | Ludolph Jr. Lingohr | 9 | Son | — | Michigan |
| 78 | William Jones | 29 | head | Salesman | Michigan |
| 79 | Maisie Jones | 34 | Wife | — | Nebraska |
| 80 | Barbara Jones | 6 | daughter | — | Canada |
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)