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Mary Mckay — 1920 US Census Record
Linked across censuses1920 United States Federal Census · St Clair, Michigan
Our Model Tree links this Mary Mckay across the 1910 and 1920 US Censuses in St Clair, Michigan (XGBoost, ~Confirmed) — first a daughter (b.~1904), then head of a 6-person household.
Age 16
b. ~1904
Female
Daughter
Born: Michigan
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | St Clair, Michigan |
| Surname | McKay |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Port Huron City |
| Est. Birth Year | ~1904 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| J Mckay | Head | — | 57 | ~1863 |
| Nellie Mckay | Daughter | — | 8 | ~1912 |
| Iva Mckay | Spouse | — | 40 | ~1880 |
| Mary Mckay | Daughter | — | 16 | ~1904 |
| Jean Mckay | Daughter | — | 2 | ~1918 |
| Donald Mckay | Son | — | 19 | ~1901 |
Census Appearances
1910
St Clair, …
Daughter, age 6
St Clair, Michigan · implied b. ~1904 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKay |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1920
St Clair, …
Daughter, age 16
St Clair, Michigan · implied b. ~1904 — 6 household members
| Surname | McKay |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 (1910 and 1920) in St Clair, Michigan, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mckay
Daughter · 1920 · age 16 · b. ~1904 · Michigan
★ You are viewing this record
Sibling
Jean Mckay
Sibling · 1920 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Mckay
Sibling · 1920 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Mckay
Sibling · 1920 · age 8
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
1920 US Federal Census — St Clair, Michigan
Open full size
1920 US Federal Census — St Clair, Michigan
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu795unit:0849)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Jack Lloyd | 5 | Son | None | Michigan |
| 52 | Erdene Lloyd | 3 | Daughter | None | Michigan |
| 53 | Sweet Vera Lloyd | 22 | Daughter | Stenographer | Michigan |
| 54 | Delbert Lloyd | 19 | Brother-in-law | Laborer | Michigan |
| 55 | Lemuel Grant | 29 | Head | Laborer | Michigan |
| 56 | Mira Grant | 26 | Wife | None | Michigan |
| 57 | Ralph Grant | 10 | Son | None | Michigan |
| 58 | Herbert D. Allen | 53 | Head | Merchant | Michigan |
| 59 | Naomi Allen | 48 | Wife | Clerk | Michigan |
| 60 | Holly L. Allen | 8 | Son | None | Michigan |
| 61 | Jacob Sherman | 41 | Head | Drayman | New York |
| 62 | Mabel Sherman | 28 | Wife | None | New York |
| 63 | Alvin Sherman | 6 | Son | None | New York |
| 64 | Jessie L. Sherman | 3 | Son | None | Michigan |
| 65 | Bury M. Sherman | 1 | Daughter | None | Michigan |
| 66 | Claude Bailey | 39 | Head | Contractor | Michigan |
| 67 | Ella Bailey | 28 | Wife | None | Michigan |
| 68 | Claudia Bailey | 6 | Daughter | None | Michigan |
| 69 | Beulah Bailey | 4 | Daughter | None | Michigan |
| 70 | Marguerite Bailey | 2 | Daughter | None | Michigan |
| 71 | Maud Bailey | 1 | Daughter | None | Michigan |
| 72 | Emma Downs | 63 | Head | None | Michigan |
| 73 | James Downs | 12 | Son | None | Michigan |
| 74 | Louis Norris | 42 | Head | Laborer | Michigan |
| 75 | Maud Norris | 40 | Wife | None | Michigan |
| 76 | Mary Cole | 18 | Niece | Seed Sorter | Michigan |
| 77 | Dorothy Cole | 3 | Granddaughter | None | Michigan |
| 78 | Albert Wessel | 22 | Head | Machinist | Germany |
| 79 | Beatrice Wessel | 22 | Wife | None | England |
| 80 | John Wessel | 0 | Son | None | Michigan |
| 81 | Joseph Wessel | 18 | Brother | Laborer | Germany |
| 82 | William Bedal | 47 | Head | Pipe Fitter | Canada |
| 83 | Alice Bedal | 37 | Wife | None | Canada |
| 84 | Helen Bedal | 15 | Daughter | Knitter | Michigan |
| 85 | Jessie Bedal | 14 | Daughter | None | Michigan |
| 86 | Fred F. Freed | 46 | Head | Manager | Michigan |
| 87 | Laurie B. Freed | 43 | Wife | None | Michigan |
| 88 | Bingham Freed | 21 | Son | Manager | Michigan |
| 89 | Anna L. Freed | 18 | Daughter | None | Michigan |
| 90 | Francina Freed | 14 | Daughter | None | Michigan |
| 91 | Charles Freed | 12 | Son | None | Michigan |
| 92 | J. R. Mckay | 57 | Head | Merchant | Michigan |
| 93 | Iva Mckay | 40 | Wife | None | Canada |
| 94 | Donald Mckay | 19 | Son | Clerk | Illinois |
| 95 | Mary Mckay THIS PERSON | 16 | Daughter | None | Michigan |
| 96 | Nellie Mckay | 8 | Daughter | None | Michigan |
| 97 | Jean Mckay | 2 | Daughter | None | Michigan |
| 98 | Francis Wallon | 54 | Head | Foreman | Canada |
| 99 | Matilda Wallon | 43 | Wife | None | Canada |
| 100 | Francis Wallon | 19 | Daughter | None | Michigan |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)