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John Mckay — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Essex-County, Massachusetts
Our Model Tree links this John Mckay across the 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 11-person household.
Age 44
b. ~1896
Male
Head
Born: Canada-Eng
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Essex-County, Massachusetts |
| Surname | McKay |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Canada-Eng |
| 1935 Residence (City) | Marblehead |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Boats |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birthplace (normalized) | canada-eng |
| Occupation | Carpenter |
| Township / Ward | Marblehead |
| Est. Birth Year | ~1896 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Foster | Other | — | 50 | ~1890 |
| Jean Mckay | Daughter | — | 17 | ~1923 |
| Estelle Mckay | Daughter | — | 12 | ~1928 |
| Donald Mckay | Son | — | 14 | ~1926 |
| Dorothy Mckay | Daughter | — | 9 | ~1931 |
| John Mckay | Son | — | 13 | ~1927 |
| John Mckay | Head | — | 44 | ~1896 |
| Marilyn Mckay | Daughter | — | 7 | ~1933 |
| Joy Mckay | Daughter | — | 16 | ~1924 |
| Agatha Mckay | Spouse | — | 39 | ~1901 |
| Alden Mckay | Son | — | 5 | ~1935 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 34
Suffolk, Massachusetts · implied b. ~1896 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mackay |
| Given Name | John F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Canada-Eng |
| Naturalization Status | Naturalized |
| Year of Immigration | 1898 |
| Father's Birthplace | Canada-Eng |
| Mother's Birthplace | Canada-Eng |
| Occupation | Lumber Salesman |
| Industry | Lumber Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Veteran | Yes |
| Birthplace (normalized) | canada-eng |
1940
Essex-County, Massachusetts
Head, age 44
Essex-County, Massachusetts · implied b. ~1896 — 11 household members
| Surname | McKay |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Canada-Eng |
| 1935 Residence (City) | Marblehead |
| 1935 Residence (County) | Essex |
| Naturalization Status | Naturalized |
| Occupation | Carpenter |
| Industry | Boats |
| Class of Worker | OA |
| Hours Worked | 45 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birthplace (normalized) | canada-eng |
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 Mckay across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mckay
Head · 1940 · age 44 · b. ~1896 · Massachusetts
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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 — Essex-County, Massachusetts
Open full size
1940 US Federal Census — Essex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01585-00329)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harding Elizabeth Harding | 32 | Wife | — | Illinois |
| 42 | John Pollister | 37 | Head | Insurance | Ohio |
| 43 | Elizabeth Pollister | 36 | Wife | — | Illinois |
| 44 | John Jr. Pollister | 11 | Son | — | Ohio |
| 45 | Milton H. Page | 42 | Head | Shoe Manufacturer | Massachusetts |
| 46 | Marietta V. Page | 41 | Wife | — | New Hampshire |
| 47 | Walter Page | 20 | Son | — | Massachusetts |
| 48 | William Jr. Page | 16 | Son | — | Massachusetts |
| 49 | Bert Page | 12 | Son | — | Massachusetts |
| 50 | Mary Lou Page | 10 | Daughter | — | Massachusetts |
| 51 | Sheldon Borden | 41 | Head | Accountant | Massachusetts |
| 52 | Lara D. Borden | 37 | Wife | — | Massachusetts |
| 53 | Joanne Borden | 11 | Daughter | — | Massachusetts |
| 54 | Bradford Borden | 7 | Son | — | Massachusetts |
| 55 | Charles Munro | 52 | Head | Salesman | Massachusetts |
| 56 | Helen Munro | 50 | Wife | — | Massachusetts |
| 57 | Jean Munro | 22 | Daughter | Book-Keeping | Massachusetts |
| 58 | Janet Munro | 15 | Daughter | — | Massachusetts |
| 59 | Ruth D. Macomber | 47 | Head | — | South Dakota |
| 60 | Sumner Macomber | 13 | Son | — | Rhode Island |
| 61 | Elwood Church | 38 | Head | Electrical Engineer | Illinois |
| 62 | Eileen Church | 34 | Wife | — | Nebraska |
| 63 | Elizabeth Church | 1 | Daughter | — | Massachusetts |
| 64 | John Hall | 38 | Head | — | New Jersey |
| 65 | Eleanor Hall | 31 | Wife | — | Massachusetts |
| 66 | Sydney Hall | 1 | Son | — | Massachusetts |
| 67 | John Mckay THIS PERSON | 44 | Head | Carpenter | Canada-Eng |
| 68 | Agatha Mckay | 39 | Wife | — | Canada-Eng |
| 69 | Jean Mckay | 17 | Daughter | — | Massachusetts |
| 70 | Joy Mckay | 16 | Daughter | — | Massachusetts |
| 71 | Donald Mckay | 14 | Son | — | Massachusetts |
| 72 | John Mckay | 13 | Son | — | Massachusetts |
| 73 | Estelle Mckay | 12 | Daughter | — | Massachusetts |
| 74 | Dorothy Mckay | 9 | Daughter | — | Massachusetts |
| 75 | Marilyn Mckay | 7 | Daughter | — | Massachusetts |
| 76 | Alden Mckay | 5 | Son | — | Massachusetts |
| 77 | Mary Foster | 50 | Mother | Nurse | Canada-Eng |
| 78 | Ralph H. Boyden | 57 | Head | Foreman | Massachusetts |
| 79 | Belle Boyden | 54 | Wife | — | Massachusetts |
| 80 | Sally C. Boyden | 19 | Daughter | — | Massachusetts |
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)