MM
Mary Mckay — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Wayne, Michigan
Our Model Tree links this Mary Mckay across the 1930 and 1940 US Censuses in Wayne, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 5-person household.
Age 0
b. ~1930
Female
Daughter
Born: Michigan
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Wayne, Michigan |
| Surname | McKay |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Canada-English |
| Additional Details | |
| Mother Tongue | English |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Inkster Village |
| Est. Birth Year | ~1930 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Mckay | Son | — | 2 | ~1928 |
| James Mckay | Son | — | 1 | ~1929 |
| Mary Mckay | Daughter | — | ~1930 | |
| Beatrice Mckay | Spouse | — | 24 | ~1906 |
| Bert Mckay | Head | — | 22 | ~1908 |
Census Appearances
1930
Wayne, Michigan
Daughter, age
Wayne, Michigan · implied b. ~1930 — 5 household members
| Surname | McKay |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Canada-English |
| Mother Tongue | English |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 10
Wayne-County, Michigan · implied b. ~1930 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mackey |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Highest Grade | 5 |
| 1935 Residence | Michigan |
| 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 Mckay across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mckay
Daughter · 1930 · age 0 · b. ~1930 · Michigan
★ You are viewing this record
Sibling
James Mckay
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mckay
Sibling · 1930 · age 2
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
1930 US Federal Census — Wayne, Michigan
Open full size
1930 US Federal Census — Wayne, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel1031:0502)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Daniel Brown | 24 | Head | — | Michigan |
| 52 | Muriel Brown | 22 | Wife | — | Michigan |
| 53 | Margaret Brown | 1 | Daughter | — | Michigan |
| 54 | Nathan Brown | 22 | Brother-in-law | Laborer | Michigan |
| 55 | John Kowalski | 34 | Head | Laborer | Poland |
| 56 | Mary Kowalski | 28 | Wife | — | Poland |
| 57 | John Kowalski | 12 | Son | — | Poland |
| 58 | Edward Kowalski | 8 | Son | — | Poland |
| 59 | Helen Kowalski | 6 | Daughter | — | Poland |
| 60 | Stanley Kowalski | 0 | Son | — | Michigan |
| 61 | Joseph Kowalski | 5 | Son | — | Michigan |
| 62 | John Wojcik | 31 | Head | Laborer | Michigan |
| 63 | Mary Wojcik | 27 | Wife | — | Michigan |
| 64 | John Wojcik | 5 | Son | — | Michigan |
| 65 | Leo Wojcik | 3 | Son | — | Michigan |
| 66 | Andrew Wojcik | 40 | Head | Laborer | Michigan |
| 67 | Mary Wojcik | 33 | Wife | — | Michigan |
| 68 | William Walker | 29 | Head | Machinist | Michigan |
| 69 | Eva Walker | 26 | Wife | — | Michigan |
| 70 | Russell Walker | 6 | Son | — | Michigan |
| 71 | Dorothy Walker | 5 | Daughter | — | Michigan |
| 72 | Bert Walker | 2 | Son | — | Michigan |
| 73 | Bert Mckay | 22 | Head | Laborer | Canada-English |
| 74 | Beatrice Mckay | 24 | Wife | — | Canada-English |
| 75 | John Mckay | 2 | Son | — | Michigan |
| 76 | James Mckay | 1 | Son | — | Michigan |
| 77 | Mary Mckay THIS PERSON | 0 | Daughter | — | Michigan |
| 78 | James Mckay | 31 | Head | Driver | Canada-English |
| 79 | Sarah Mckay | 27 | Wife | — | Canada-English |
| 80 | James Mckay | 11 | Son | — | Canada-English |
| 81 | Sarah Mckay | 8 | Daughter | — | Canada-English |
| 82 | Mary Mckay | 5 | Daughter | — | Canada-English |
| 83 | John Mckay | 2 | Son | — | Michigan |
| 84 | John Mckay | 41 | Head | Laborer | Canada-English |
| 85 | Mary Mckay | 39 | Wife | — | Ireland |
| 86 | John Mckay | 18 | Son | — | Canada-English |
| 87 | Margaret Mckay | 15 | Daughter | — | Canada-English |
| 88 | Joseph Mckay | 36 | Head | Laborer | Canada-English |
| 89 | Margaret Mckay | 34 | Wife | — | Canada-English |
| 90 | Joseph Mckay | 12 | Son | — | Canada-English |
| 91 | John Mckay | 5 | Son | — | Michigan |
| 92 | Tom Mckay | 2 | Son | — | Michigan |
| 93 | Albert Kemp | 31 | Head | Laborer | Georgia |
| 94 | Mary Kemp | 27 | Wife | — | Georgia |
| 95 | Martha Kemp | 5 | Daughter | — | Michigan |
| 96 | Daughter Kemp | 4 | Daughter | — | Ohio |
| 97 | Son Kemp | 2 | Son | — | Ohio |
| 98 | Son Kemp | 1 | Son | — | Michigan |
| 99 | Donald Gilbert | 30 | Head | Carpenter | South Dakota |
| 100 | Mary Gilbert | 21 | Wife | — | Canada-English |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)