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John Mckay — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Mckay across the 1920, 1930 and 1940 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 3-person household.
Age 57
b. ~1873
Male
Head
Born: Maine
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | McKay |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Maine |
| Age at First Marriage | 19 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Additional Details | |
| Occupation | Shoemaker |
| Industry | Shoe Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 22 |
| Radio Set | R |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Shoemaker |
| Township / Ward | Everett City |
| Est. Birth Year | ~1873 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Mckay | Head | — | 57 | ~1873 |
| Hazel Mckay | Daughter | — | 21 | ~1909 |
| Henrietta Mckay | Other | — | 57 | ~1873 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 47
Middlesex, Massachusetts · implied b. ~1873
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Mackay |
| Given Name | John G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Maine |
| Father's Birthplace | Canada |
| Mother's Birthplace | Maine |
| Occupation | Engineer |
| Industry | Stationary |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Maine |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | maine |
1930
Middlesex, Massachusetts
Head, age 57
Middlesex, Massachusetts · implied b. ~1873 — 3 household members
| Surname | McKay |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Maine |
| Age at First Marriage | 19 |
| Father's Birthplace | Maine |
| Mother's Birthplace | Maine |
| Occupation | Shoemaker |
| Industry | Shoe Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 22 |
| Radio Set | R |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1940
Middlesex-County, Massachusetts
Other, age 67
Middlesex-County, Massachusetts · implied b. ~1873 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mc Kay |
| Given Name | John E. |
| Relationship to Head | Father-in-law |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Maine |
| 1935 Residence (City) | Everett |
| 1935 Residence (County) | Middlesex |
| Industry | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mckay
Head · 1930 · age 57 · b. ~1873 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Middlesex, Massachusetts
Open full size
1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel918:0292)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Anna A. Mccarty | 17 | Daughter | Winding Machine | Massachusetts |
| 52 | Vincent D. Mccarty | 16 | Son | — | Massachusetts |
| 53 | Rita M. Mccarty | 12 | Daughter | — | Massachusetts |
| 54 | Helen C. Mccarty | 10 | Daughter | — | Massachusetts |
| 55 | Nellie S. Eastman | 57 | Head | Saleslady | Massachusetts |
| 56 | Nelly M. Bradshaw | 15 | Niece | — | Massachusetts |
| 57 | John L. Mckay THIS PERSON | 57 | Head | Shoemaker | Maine |
| 58 | Henrietta M. Mckay | 57 | Wife-H | — | Canada-English |
| 59 | Hazel Mckay | 21 | Daughter | Shoemaker | Maine |
| 60 | Felix Mroz | 36 | Head | Iron Maker | Poland |
| 61 | Rosie Mroz | 30 | Wife-H | — | Poland |
| 62 | John M. Mroz | 10 | Son | — | Massachusetts |
| 63 | Blanche M. Mroz | 6 | Daughter | — | Massachusetts |
| 64 | Anna Mroz | 3 | Daughter | — | Massachusetts |
| 65 | Michal Chrostek | 38 | Boarder | Time Keeper | Poland |
| 66 | Solomilo Ignacio | 64 | Head | — | Italy |
| 67 | Maria G. Ignacio | 66 | Wife-H | — | Italy |
| 68 | Agostino Izzo | 42 | Head | Barber | Italy |
| 69 | Barbara C. Izzo | 45 | Wife-H | — | Italy |
| 70 | Lucy Izzo | 20 | Daughter | Shoemaker | Italy |
| 71 | Agnes Izzo | 19 | Daughter | — | Italy |
| 72 | Robert P. Cameron | 40 | Head | Burnisher | Massachusetts |
| 73 | Edith M. Cameron | 39 | Wife-H | — | Massachusetts |
| 74 | John J. Cameron | 20 | Son | Office Boy | Massachusetts |
| 75 | Camilla M. Cameron | 18 | Daughter | — | Massachusetts |
| 76 | Robert P. Jr. Cameron | 16 | Son | — | Massachusetts |
| 77 | Mary E. Cameron | 14 | Daughter | — | Massachusetts |
| 78 | Edith G. Cameron | 12 | Daughter | — | Massachusetts |
| 79 | William J. Cameron | 9 | Son | — | Massachusetts |
| 80 | Ruth Cameron | 7 | Daughter | — | Massachusetts |
| 81 | Joseph D. Cameron | 6 | Son | — | Massachusetts |
| 82 | Gerard F. Cameron | 3 | Son | — | Massachusetts |
| 83 | Alice M. Cameron | 0 | Daughter | — | Massachusetts |
| 84 | William Rollins | 62 | Head | Waiter | South Carolina |
| 85 | Cleopatra Rollins | 57 | Wife-H | — | South Carolina |
| 86 | James L. Rollins | 33 | Son | Printer | Massachusetts |
| 87 | Lucy B. Rollins | 32 | Daughter | — | Massachusetts |
| 88 | Viola H. Fries | 34 | Roomer | Dressmaker | Massachusetts |
| 89 | Cornelius J. Shields | 25 | Head | Molder | Massachusetts |
| 90 | Marion M. Shields | 21 | Wife-H | — | Massachusetts |
| 91 | Priscilla A. Shields | 2 | Daughter | — | Massachusetts |
| 92 | William T. Shields | 1 | Son | — | Massachusetts |
| 93 | William E. Hennessey | 65 | Head | Janitor | Massachusetts |
| 94 | Catherine A. Hennessey | 57 | Wife-H | — | Connecticut |
| 95 | Rose G. Hennessey | 19 | Daughter | Waitress | Massachusetts |
| 96 | Margaret L. Hennessey | 15 | Daughter | — | Massachusetts |
| 97 | James G. Hampton | 39 | Head | Fireman | North Carolina |
| 98 | Amy G. Hampton | 32 | Wife-H | — | North Carolina |
| 99 | Edward J. Hampton | 2 | Son | — | Massachusetts |
| 100 | Charles D. Young | 47 | Head | Laborer | 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)