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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.~1929), then head of a 6-person household.
Age 1
b. ~1929
Female
Daughter
Born: Michigan
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Wayne, Michigan |
| Surname | McKay |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Additional Details | |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1929 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Frederick Mckay | Son | — | 6 | ~1924 |
| Mary Mckay | Daughter | — | 1 | ~1929 |
| Irene Mckay | Daughter | — | 4 | ~1926 |
| John Mckay | Head | — | 33 | ~1897 |
| Jean Mckay | Other | — | 33 | ~1897 |
| Robert Mckay | Son | — | 10 | ~1920 |
Census Appearances
1930
Wayne, Michigan
Daughter, age 1
Wayne, Michigan · implied b. ~1929 — 6 household members
| Surname | McKay |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Daughter, age 11
Wayne-County, Michigan · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCoy |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Dearborn |
| 1935 Residence (County) | Wayne |
| Highest Grade | No 6 |
| 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 1 · b. ~1929 · Michigan
★ You are viewing this record
Sibling
Irene Mckay
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mckay
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Mckay
Sibling · 1930 · age 6
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
49 people indexed on this census page (ia:1930:michigancensus00reel1037:0921)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John D. Mckay | 33 | Head | Night Manager | Canada English |
| 52 | Jean Mckay | 33 | Wife-H | None | Canada English |
| 53 | Robert Mckay | 10 | Son | None | Michigan |
| 54 | Frederick Mckay | 6 | Son | None | Michigan |
| 55 | Irene A. Mckay | 4 | Daughter | None | Michigan |
| 56 | Mary J. Mckay THIS PERSON | 1 | Daughter | None | Michigan |
| 57 | Betty Brown | 35 | Head-H | Stenographer | Canada English |
| 58 | Myrie Lough | 34 | Lodger | Switchboard Op | Michigan |
| 59 | Jeff Caudill | 27 | Head | Driver | Kentucky |
| 60 | Donalda Caudill | 23 | Wife-H | Typerst | Michigan |
| 61 | Gerald Hodge | 38 | Head | Salesman | Michigan |
| 62 | Bernadette Hodge | 35 | Wife-H | Saleslady | Michigan |
| 63 | Isabel Hodge | 15 | Daughter | None | Michigan |
| 64 | Gerald Hodge | 12 | Son | None | Michigan |
| 65 | Hans Strauss | 34 | Head | Die-Maker | Germany |
| 66 | Hubert Kaeppler | 32 | Lodger | Machine Operator | Germany |
| 67 | Evelyn Bush | 36 | Head-H | Dressmaker | Pennsylvania |
| 68 | Frank L. Colins | 26 | Head | Upholstering | Wisconsin |
| 69 | Margaret Colins | 26 | Wife-H | None | Wisconsin |
| 70 | Frank L. Jr. Colins | 1 | Son | None | Michigan |
| 71 | Hurly P. Hinkle | 24 | Head | Inspector | Tennessee |
| 72 | Ival E. Hinkle | 22 | Wife-H | None | Virginia |
| 73 | Carlyle P. Hubbard | 25 | Head | Painter | Pennsylvania |
| 74 | Aileen Hubbard | 23 | Wife-H | None | Ohio |
| 75 | Richard C. Hubbard | 3 | Son | None | Ohio |
| 76 | Mark Truman | 32 | Head | Salesman | Michigan |
| 77 | Amy Truman | 31 | Wife-H | None | Michigan |
| 78 | Eunice Truman | 5 | Daughter | None | Michigan |
| 79 | Kenneth Truman | 3 | Son | None | Michigan |
| 80 | Wilbert Hulst | 23 | Bro-in-law | None | Michigan |
| 81 | Harry Desmond | 46 | Head | Tool Maker | Pennsylvania |
| 82 | Mary G. Desmond | 28 | Wife-H | None | Canada English |
| 83 | Wilbur G. Woodbury | 33 | Head | Student Minister | Michigan |
| 84 | Ella M. Woodbury | 37 | Wife-H | None | Michigan |
| 86 | Charles B. Hammill | 44 | Head | Salesman | Michigan |
| 87 | Cecile Hammill | 36 | Wife-H | None | Michigan |
| 88 | Booth Hammill | 10 | Son | None | Michigan |
| 89 | Garfield W. Smitham | 35 | Head | Glass Setter | England |
| 90 | Olive Smitham | 33 | Wife-H | None | England |
| 91 | Percy Hofman | 28 | Bro-in-law | Machinist | England |
| 92 | Leslie Roberts | 27 | Lodger | Tool-Maker | England |
| 93 | Jack Edwards | 27 | Lodger | Tool-Maker | England |
| 94 | Joseph T. Smitham | 26 | Brother | Tool-Maker | England |
| 95 | Ellis T. Newton | 45 | Head | Public Accountant | Ohio |
| 96 | Gladys Newton | 40 | Wife-H | None | Michigan |
| 97 | Robert H. Newton | 13 | Son | None | Michigan |
| 98 | Evelyn S. Hamilton | 71 | Head | Office Clerk | Michigan |
| 99 | Edward G. Hamilton | 54 | Son | None | Michigan |
| 100 | E. Roy Hamilton | 36 | Son | Salesman | Michigan |
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)