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Mary Boyle — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Oakland-County, Michigan
Our Model Tree links this Mary Boyle across the 1930 and 1940 US Censuses in Oakland-County, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Female
Daughter
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Oakland-County, Michigan |
| Surname | Boyle |
| Given Name | Mary Jane |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Milford Village |
| 1935 Residence (County) | Oakland |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Milford Village |
| Est. Birth Year | ~1926 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Joyce Boyle | Daughter | — | 5 | ~1935 |
| Margaret Boyle | Daughter | — | 13 | ~1927 |
| Mary Boyle | Daughter | — | 14 | ~1926 |
| Nancy Boyle | Daughter | — | 10 | ~1930 |
| Vincent Boyle | Head | — | 45 | ~1895 |
| Vincent Boyle | Son | — | 16 | ~1924 |
| Martin Boyle | Son | — | 12 | ~1928 |
| Celia Boyle | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Oakland, Michigan
Daughter, age 4
Oakland, Michigan · implied b. ~1926 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyle |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Oakland-County, Michigan
Daughter, age 14
Oakland-County, Michigan · implied b. ~1926 — 8 household members
| Surname | Boyle |
| Given Name | Mary Jane |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Milford Village |
| 1935 Residence (County) | Oakland |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 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 Mary Boyle across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Boyle
Daughter · 1940 · age 14 · b. ~1926 · Michigan
★ You are viewing this record
Sibling
Margaret Boyle
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Boyle
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Boyle
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Boyle
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joyce Boyle
Sibling · 1940 · age 5
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 — Oakland-County, Michigan
Open full size
1940 US Federal Census — Oakland-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01800-00050)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | June Deharms | 26 | daughter | — | Michigan |
| 42 | William D Porter | 45 | head | Proprietor | Michigan |
| 43 | Florence Porter | 43 | wife | — | Michigan |
| 44 | Margaret Jean Porter | 17 | daughter | — | Michigan |
| 45 | Wilma H Porter | 13 | daughter | — | Michigan |
| 46 | Betty Lu Porter | 5 | daughter | — | Michigan |
| 47 | Walter D Nobis | 48 | head | Nursery Man | Illinois |
| 48 | Dorothy G Nobis | 42 | wife | — | Ohio |
| 49 | Maratha Nobis | 15 | daughter | — | Michigan |
| 50 | Timothy Nobis | 13 | son | — | Michigan |
| 51 | Sally Nobis | 7 | daughter | — | Michigan |
| 52 | Robert Hannah | 30 | head | Automobile Salesman | Michigan |
| 53 | Thelma D Hannah | 27 | wife | — | Michigan |
| 54 | Donald Hannah | 9 | son | — | Michigan |
| 55 | Roger Lee Hannah | 8 | son | — | Michigan |
| 56 | Adeline D Hamell | 55 | head | Hardware Proprietor | Michigan |
| 57 | Joseph D Hangel | 70 | head | Minister | Wisconsin |
| 58 | Minnie B Hangel | 67 | wife | — | Michigan |
| 59 | Lawrence Pajot | 28 | head | Machinist | Michigan |
| 60 | Dorothy D Pajot | 20 | wife | — | Michigan |
| 61 | Dennis Pajot | 1 | son | — | Michigan |
| 62 | Dean Smith | 21 | head | Steel Worker | Illinois |
| 63 | Leona D Smith | 17 | wife | — | Ohio |
| 64 | Deanna Smith | 2 | daughter | — | Michigan |
| 65 | Ernest Burtons | 30 | head | Farm Laborer | Washington |
| 66 | Alice D Burtons | 20 | wife | — | Michigan |
| 67 | Katherine Burtons | 12 | daughter | — | Michigan |
| 68 | Fred L Forshee | 52 | head | Dentist | Michigan |
| 69 | Clara D Forshee | 51 | wife | — | Michigan |
| 70 | Donald Forshee | 19 | son | Test (New Work) Driver | Michigan |
| 71 | Vincent Boyle | 45 | head | Coal & Fuel Oil Proprietor | Michigan |
| 72 | Celia D Boyle | 45 | wife | — | Michigan |
| 73 | Vincent Boyle | 16 | son | — | Michigan |
| 74 | Mary Jane Boyle THIS PERSON | 14 | daughter | — | Michigan |
| 75 | Margaret Boyle | 13 | daughter | — | Michigan |
| 76 | Martin Boyle | 12 | son | — | Michigan |
| 77 | Nancy Boyle | 10 | daughter | — | Michigan |
| 78 | Joyce Boyle | 5 | daughter | — | Michigan |
| 79 | George Serace | 66 | head | Partner In Barber Shop | Michigan |
| 80 | Birtha D Serace | 70 | wife | — | Michigan |
Related Census Records
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)