JH
John Hendrickson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this John Hendrickson across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed), with identified parents John & Hannah — first a head (b.~1908), then head of a 6-person household.
Age 32
b. ~1908
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Hendrickson |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | Painter |
| Industry | Manufacturing Plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1250 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Painter |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1908 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Edwin Hendrickson | Son | — | 6 | ~1934 |
| Winifred Hendrickson | Spouse | — | 30 | ~1910 |
| Robert Hendrickson | Son | — | 8 | ~1932 |
| Helena Hendrickson | Daughter | — | 7 | ~1933 |
| John Hendrickson | Head | — | 32 | ~1908 |
| Norman Hendrickson | Son | — | 10 | ~1930 |
Census Appearances
1920
Worcester, Massachusetts
Son, age 8
Worcester, Massachusetts · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrickson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Worcester, Massachusetts
Son, age 18
Worcester, Massachusetts · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrickson |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Painter |
| Industry | House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Head, age 32
Worcester-County, Massachusetts · implied b. ~1908 — 6 household members
| Surname | Hendrickson |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Occupation | Painter |
| Industry | Manufacturing Plant |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1250 |
| Highest Grade | No 8 |
| 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 Hendrickson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Hendrickson (~0.92 confidence) and mother Hannah Hendrickson (~0.92 confidence) and mother Siiri Hendrickson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Hendrickson
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Hannah Hendrickson
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Siiri Hendrickson
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hendrickson
Head · 1940 · age 32 · b. ~1908 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01714-00045)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary M. Burke | 44 | Wife | — | Massachusetts |
| 42 | James M. Burke | 17 | Son | — | Massachusetts |
| 43 | John H. Burke | 14 | Son | — | Massachusetts |
| 44 | Richard Burke | 8 | Son | — | Massachusetts |
| 45 | Mary Burke | 5 | Daughter | — | Massachusetts |
| 46 | Francis Mc Ganty | 34 | Head | Cement Work | Massachusetts |
| 47 | Agnes Mc Ganty | 37 | Wife | — | Massachusetts |
| 48 | Francis, Jr. Mc Ganty | 2 | Son | — | Massachusetts |
| 49 | Mary V. Mc Ganty | 0 | Daughter | — | Massachusetts |
| 50 | Phyllis Hodgkins | 16 | Daughter | — | Massachusetts |
| 51 | Walter Hodgkins | 14 | Son | — | Massachusetts |
| 52 | Charles Hodgkins | 13 | Step Son | — | Massachusetts |
| 53 | Michael Delaney | 67 | Head | Retired | Ireland |
| 54 | Josephine Delaney | 33 | Daughter | Buster | Massachusetts |
| 55 | Henry M. Delaney | 30 | Son | Laborer | Massachusetts |
| 56 | Joseph Martocci | 39 | Head | Truck Driver | Massachusetts |
| 57 | Agnes Martocci | 32 | Wife | — | Massachusetts |
| 58 | Margaret Martocci | 2 | Daughter | — | Massachusetts |
| 59 | Thomas Martocci | 85 | Father | Retired | Italy |
| 60 | John H. Hendrickson THIS PERSON | 32 | Head | Painter | Massachusetts |
| 61 | Winifred Hendrickson | 30 | Wife | — | Maine |
| 62 | Norman Hendrickson | 10 | Son | — | Massachusetts |
| 63 | Robert Hendrickson | 8 | Son | — | Massachusetts |
| 64 | Helena Hendrickson | 7 | Daughter | — | Massachusetts |
| 65 | Edwin Hendrickson | 6 | Son | — | Massachusetts |
| 66 | Francis Manning | 32 | Head | Dresser Tender | Massachusetts |
| 67 | Esther Manning | 37 | Wife | — | Finland |
| 68 | Joan Manning | 8 | Daughter | — | Massachusetts |
| 69 | Francis Hickey | 44 | Head | Tinner | Massachusetts |
| 70 | Catherine Hickey | 44 | Wife | — | Massachusetts |
| 71 | Margaret Hickey | 24 | Daughter | Shipping Clerk | Massachusetts |
| 72 | Francis T. Hickey | 22 | Son | — | Massachusetts |
| 73 | Frederick Daley | 31 | Head | Receiving Clerk | Massachusetts |
| 74 | Edna Daley | 29 | Wife | — | Massachusetts |
| 75 | Frederick, Jr. Daley | 5 | Son | — | Massachusetts |
| 76 | Joanne Daley | 2 | Daughter | — | Massachusetts |
| 77 | William Mcmanus | 9 | Head | Janitor | Massachusetts |
| 78 | Ann Mcmanus | 6 | Wife | — | Ireland |
| 79 | Ainslee Westover | 35 | Head | Attendant | Massachusetts |
| 80 | Marion Westover | 32 | Wife | — | Massachusetts |
Pedigree Summary
John
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)