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John Mckenzie — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Mckenzie across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 9-person household.
Age 17
b. ~1923
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | McKenzie |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Chelsea city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Laborer |
| Industry | W.P.A. |
| Class of Worker | GW |
| Income (1939) | 252 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Laborer |
| Township / Ward | Chelsea City |
| Est. Birth Year | ~1923 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Albert Mckenzie | Head | — | 38 | ~1902 |
| John Mckenzie | Son | — | 17 | ~1923 |
| Margaret Mckenzie | Spouse | — | 39 | ~1901 |
| Barbara Mckenzie | Daughter | — | 11 | ~1929 |
| Walter Mckenzie | Son | — | 12 | ~1928 |
| Howard Mckenzie | Son | — | 9 | ~1931 |
| Margaret Mckenzie | Daughter | — | 14 | ~1926 |
| Joan Mckenzie | Daughter | — | 7 | ~1933 |
| William Mckenzie | Son | — | 16 | ~1924 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 7
Suffolk, Massachusetts · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKenzie |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada-English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 17
Suffolk-County, Massachusetts · implied b. ~1923 — 9 household members
| Surname | McKenzie |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Chelsea city |
| 1935 Residence (County) | Suffolk |
| Occupation | Laborer |
| Industry | W.P.A. |
| Class of Worker | GW |
| Income (1939) | 252 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Mckenzie across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mckenzie
Son · 1940 · age 17 · b. ~1923 · Massachusetts
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Sibling
Margaret Mckenzie
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Mckenzie
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Mckenzie
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mckenzie
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Mckenzie
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Mckenzie
Sibling · 1940 · age 12
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
1940 US Federal Census — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01641-00483)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Fred Condon | 34 | Head | Shipwright | Massachusetts |
| 2 | Anne M. Condon | 31 | Wife | — | Connecticut |
| 3 | Joseph Jr. Condon | 9 | Son | — | Canada-French |
| 4 | Edmond Condon | 7 | Son | — | Massachusetts |
| 5 | Alice Condon | 6 | Daughter | — | Massachusetts |
| 6 | Barbara Condon | 5 | Daughter | — | Massachusetts |
| 7 | Joan Condon | 3 | Daughter | — | Massachusetts |
| 8 | Doris Maillette | 23 | Sister-in-law | Sorter | Massachusetts |
| 9 | Raffaele Ruggerio | 63 | Head | — | Italy |
| 10 | Maria Ruggerio | 60 | Wife | — | Italy |
| 11 | Michael Ruggerio | 25 | Son | Painter | Massachusetts |
| 12 | Frank Came | 54 | Head | Laborer | Italy |
| 13 | Josephine Came | 54 | Wife | — | Italy |
| 14 | Joseph Came | 26 | Son | Electrician | Massachusetts |
| 15 | Rose Came | 13 | Daughter | — | Massachusetts |
| 16 | Leo Fioroni | 39 | Head | Iron Worker | Massachusetts |
| 17 | Marjorie Fioroni | 36 | Wife | — | Massachusetts |
| 18 | Louise Fioroni | 15 | Daughter | — | Massachusetts |
| 19 | Rita Fioroni | 13 | Daughter | — | Massachusetts |
| 20 | Leo Jr. Fioroni | 11 | Son | — | Massachusetts |
| 21 | Walter Williams | 37 | Head | Salesman | Massachusetts |
| 22 | Mary M. Williams | 35 | Wife | — | Massachusetts |
| 23 | Charles Marotta | 29 | Brother-in-law | Junior Clerk | Massachusetts |
| 24 | Amato Deangelis | 50 | Head | — | Italy |
| 25 | Elizabeth Deangelis | 42 | Wife | Waitress | Massachusetts |
| 26 | Eleanor Evers | 23 | Lodger | — | Massachusetts |
| 27 | Albert J. Mckenzie | 38 | Head | Roof Helper | Massachusetts |
| 28 | Margaret Mckenzie | 39 | Wife | Sewing | Canada-English |
| 29 | John Mckenzie THIS PERSON | 17 | Son | Laborer | Massachusetts |
| 30 | William Mckenzie | 16 | Son | — | Massachusetts |
| 31 | Margaret Mckenzie | 14 | Daughter | — | Massachusetts |
| 32 | Walter Mckenzie | 12 | Son | — | Massachusetts |
| 33 | Barbara Mckenzie | 11 | Daughter | — | Massachusetts |
| 34 | Howard Mckenzie | 9 | Son | — | Massachusetts |
| 35 | Joan Mckenzie | 7 | Daughter | — | Massachusetts |
| 36 | William Wilson | 68 | Head | — | Massachusetts |
| 37 | Abigail Wilson | 54 | Wife | — | Massachusetts |
| 38 | Walter Wilson | 25 | Son | — | Massachusetts |
| 39 | George W. Wilson | 22 | Son | — | Massachusetts |
| 40 | Daniel Catalano | 62 | Head | — | Italy |
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)