JH
John Hendrickson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Hendrickson across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1862), then head of a 3-person household.
Age 78
b. ~1862
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Hendrickson |
| Given Name | John @ |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 78 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Wakefield |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | No No No No Ot |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | No No No No Ot |
| Township / Ward | Wakefield |
| Est. Birth Year | ~1862 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Bernice Hendrickson | Daughter | — | 52 | ~1888 |
| Emma Hendrickson | Spouse | — | 79 | ~1861 |
| John Hendrickson | Head | — | 78 | ~1862 |
Census Appearances
1900
Middlesex, Massachusetts
Head, age 38
Middlesex, Massachusetts · implied b. ~1862 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrickson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Sweden |
| Birth Month | Mar |
| Birth Year | 1862 |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Tailor |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1910
Middlesex, Massachusetts
Head, age 48
Middlesex, Massachusetts · implied b. ~1862 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrickson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Sweden |
| Years Married | 25 |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Tailor |
| Industry | Ladies garments |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1920
Middlesex, Massachusetts
Head, age 57
Middlesex, Massachusetts · implied b. ~1863 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrickson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Tailor |
| Industry | Shop of Tailor |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Sweden |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | sweden |
1930
Middlesex, Massachusetts
Head, age 68
Middlesex, Massachusetts · implied b. ~1862 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrickson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1883 |
| Age at First Marriage | 23 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Tailor |
| Industry | Retail tailor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Value / Rent | 6,500 |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Middlesex-County, Massachusetts
Head, age 78
Middlesex-County, Massachusetts · implied b. ~1862 — 3 household members
| Surname | Hendrickson |
| Given Name | John @ |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 78 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Wakefield |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Occupation | No No No No Ot |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Hendrickson across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Hendrickson
Head · 1940 · age 78 · b. ~1862 · 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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01618-00418)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret F Martin | 17 | Daughter | No No No No S | Massachusetts |
| 42 | Marie Martin | 15 | Daughter | No No No No S | Massachusetts |
| 43 | Leroy E. Brown | 40 | Head | Assistant Manager | New Hampshire |
| 44 | Hildegarde M. Brown | 39 | Wife | No No No No H | Massachusetts |
| 45 | Alice M. Brown | 9 | Daughter | — | Massachusetts |
| 46 | John @ Hendrickson THIS PERSON | 78 | Head | No No No No Ot | Sweden |
| 47 | Emma Hendrickson | 79 | Wife | No No No No Ot | Sweden |
| 48 | Bernice E Hendrickson | 52 | Daughter | Teacher | Massachusetts |
| 49 | Henry P. Marshall | 53 | Head | Accountant-Supervisor | Massachusetts |
| 50 | Mary B. Marshall | 46 | Wife | No No No No H | New Hampshire |
| 51 | Lloyd Marshall | 16 | Son | No No No No S | Massachusetts |
| 52 | John J. Mclaughlin | 42 | Head | Plumber | Massachusetts |
| 53 | Annabelle E. @ Mclaughlin | 42 | Wife | No No No No H | Massachusetts |
| 54 | Margaret M. Mclaughlin | 18 | Daughter | No No No No S | Massachusetts |
| 55 | Dorothy M. Mclaughlin | 17 | Daughter | No No No No S | Massachusetts |
| 56 | John P. Mclaughlin | 15 | Son | No No No No S | Massachusetts |
| 57 | Annabella Mclaughlin | 12 | Daughter | — | Massachusetts |
| 58 | Alice Mclaughlin | 10 | Daughter | — | Massachusetts |
| 59 | Harry W. White | 61 | Head | Fish Handler | Canada-French |
| 60 | Emma L. White | 33 | Daughter | Stenographer | Massachusetts |
| 61 | William F. White | 31 | Son | Make-Up Man | Massachusetts |
| 62 | Alfred H. @ White | 29 | Son | Knitter | Massachusetts |
| 63 | Edward J. White | 25 | Son | Knitter | Massachusetts |
| 64 | Frederick White | 20 | Son | Machine Operator | Massachusetts |
| 65 | Edith D. White | 23 | Daughter | Stenographer | Massachusetts |
| 66 | Mary J. Landry | 65 | Housekeeper | Housekeeper | Canada-French |
| 67 | Doris I. @ Richardson | 34 | Head | Book-Keeper | Massachusetts |
| 68 | Mabelle E. Richardson | 32 | Sister | Secretary | Massachusetts |
| 69 | Maude Butters | 48 | Housekeeper | Housekeeper | Massachusetts |
| 70 | John F. Kelly | 62 | Head | Electric Maintenance | Massachusetts |
| 71 | Nellie C. Kelly | 55 | Wife | No No No No H | Massachusetts |
| 72 | Maria Fitzgerald | 77 | Wife's Aunt | No No No No Ot | Massachusetts |
| 73 | John J. Calvin | 69 | Head | Press Cutter | Massachusetts |
| 74 | Margaret J. @ Calvin | 69 | Wife | No No No No H | Massachusetts |
| 75 | Allan F. Knowlton | 43 | Head | Chief Clerk | Massachusetts |
| 76 | M. Ellen @ Knowlton | 37 | Wife | No No No No H | Canada-English |
| 77 | Walter A. Knowlton | 5 | Son | — | Massachusetts |
| 78 | Emma A. Libby | 60 | Mother in Law | Dressmaker | Canada-English |
| 79 | August @ Swanson | 71 | Head | No No No No Ot | Sweden |
| 80 | Charlotte Swanson | 63 | Wife | No No No No H | Sweden |
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)