JH
John Hendrickson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ravalli-County, Montana
Our Model Tree links this John Hendrickson across the 1920, 1930 and 1940 US Censuses in Ravalli-County, Montana (XGBoost, ~Confirmed), with identified parents John & Mary — first a head (b.~1895), then head of a 9-person household.
Age 45
b. ~1895
Male
Head
Born: Montana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ravalli-County, Montana |
| Surname | Hendrickson |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Township 4 Stevens |
| 1935 Residence (County) | Ravalli |
| Additional Details | |
| Occupation | Ranch Carpenter |
| Industry | PW |
| Class of Worker | 0 |
| Hours Worked | 40 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Ranch Carpenter |
| Township / Ward | Township 4 Stevens |
| Est. Birth Year | ~1895 |
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 |
|---|---|---|---|---|
| Dorothy Hendrickson | Daughter | — | 16 | ~1924 |
| Shirley Hendrickson | Daughter | — | 3 | ~1937 |
| Ralph Hendrickson | Son | — | 14 | ~1926 |
| Gerald Hendrickson | Son | — | ~1940 | |
| John Hendrickson | Son | — | 12 | ~1928 |
| John Hendrickson | Head | — | 45 | ~1895 |
| Viola Hendrickson | Daughter | — | 8 | ~1932 |
| Teresa Hendrickson | Daughter | — | 10 | ~1930 |
| Sina Hendrickson | Spouse | — | 34 | ~1906 |
Census Appearances
1920
Ravalli, Montana
Son, age 25
Ravalli, Montana · implied b. ~1895 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrickson |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Lumber-jack |
| Industry | Saw Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
Ravalli, Montana
Head, age 35
Ravalli, Montana · implied b. ~1895 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrickson |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Montana |
| Age at First Marriage | 29 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4200 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Ravalli-County, Montana
Head, age 45
Ravalli-County, Montana · implied b. ~1895 — 9 household members
| Surname | Hendrickson |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | Township 4 Stevens |
| 1935 Residence (County) | Ravalli |
| Occupation | Ranch Carpenter |
| Industry | PW |
| Class of Worker | 0 |
| Hours Worked | 40 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Mary Hendrickson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Hendrickson
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Mary Hendrickson
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hendrickson
Head · 1940 · age 45 · b. ~1895 · Montana
★ 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 — Ravalli-County, Montana
Open full size
1940 US Federal Census — Ravalli-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02227-01032)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elmer L. Rudolph | 6 | Son | — | Montana |
| 2 | Omer C. Rudolph | 2 | Son | — | Montana |
| 3 | Philip S. Vesper | 51 | Head | Laborer | Russia |
| 4 | Katie Vesper | 78 | Mother | — | Russia |
| 5 | William J. Horton | 55 | Head | Laborer | Pennsylvania |
| 6 | Joseph B. Mcsurage | 27 | Head | Farmer | Montana |
| 7 | Charlotte B. Mcsurage | 27 | Wife | Housewife | Montana |
| 8 | Joseph C. Mcsurage | 10 | Son | — | Montana |
| 9 | Donald A. Mcsurage | 8 | Son | — | Montana |
| 10 | Ole Morrison | 63 | Head | Farmer | Finland |
| 11 | Hilda Morrison | 45 | Wife | Housewife | Montana |
| 12 | Arne O. Morrison | 26 | Son | Ccc Foreman | Montana |
| 13 | Loretta A. Morrison | 10 | Daughter | — | Montana |
| 14 | Doris E. Morrison | 1 | Daughter | — | Montana |
| 15 | Franklin Warrington | 28 | Head | Cat Driver | Montana |
| 16 | Helen M. Warrington | 25 | Wife | Housewife | Montana |
| 17 | Kite H. Lyrra | 62 | Lodger | Laborer | Finland |
| 18 | Ray M. Stratton | 36 | Head | Truck Driver | Ohio |
| 19 | Ellen Stratton | 25 | Wife | Housewife | Montana |
| 20 | Charlotte Stratton | 17 | Daughter | — | Oregon |
| 21 | Cleo Stratton | 15 | Daughter | — | Oregon |
| 22 | Arthur Hayden | 31 | Head | Farmer | Montana |
| 23 | Julia Hayden | 30 | Wife | Housewife | Montana |
| 24 | Phyllis Hayden | 7 | Daughter | — | Montana |
| 25 | Sam J. Hayden | 6 | Son | — | Montana |
| 26 | John Hendrickson | 62 | Head | Retired | Finland |
| 27 | Lena Hendrickson | 63 | Wife | Housewife | Finland |
| 28 | Luke Wittmore | 29 | Head | B.P.A. | Kansas |
| 29 | Helen Wittmore | 24 | Wife | Housewife | Montana |
| 30 | Geraldine Wittmore | 4 | Daughter | — | Montana |
| 31 | John H. Hendrickson THIS PERSON | 45 | Head | Ranch Carpenter | Montana |
| 32 | Sina Hendrickson | 34 | Wife | Housewife | Montana |
| 33 | Dorothy J. Hendrickson | 16 | Daughter | — | Montana |
| 34 | Ralph Hendrickson | 14 | Son | — | Montana |
| 35 | John H. Hendrickson | 12 | Son | — | Montana |
| 36 | Teresa A. Hendrickson | 10 | Daughter | — | Montana |
| 37 | Viola J. Hendrickson | 8 | Daughter | — | Montana |
| 38 | Shirley Hendrickson | 3 | Daughter | — | Montana |
| 39 | Gerald Hendrickson | 0 | Son | — | Montana |
| 40 | Otto Johnson | 40 | Head | Laborer | Finland |
Pedigree Summary
John
Gen 1 · 2 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)