HJ
Harold Jackson — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-County, Minnesota
Our Model Tree links this Harold Jackson across the 1920, 1930 and 1940 US Censuses in St.-Louis-County, Minnesota (XGBoost, ~Confirmed), with identified parents Herman & Herman — first a head (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Minnesota |
| Surname | Jackson |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Duluth Twps |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Occupation | Laborer |
| Industry | Grain Elevator |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 575 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Laborer |
| Township / Ward | Duluth Twps |
| Est. Birth Year | ~1910 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Lyle Jackson | Son | — | 1 | ~1939 |
| Harold Jackson | Head | — | 30 | ~1910 |
| Cecelia Jackson | Spouse | — | 24 | ~1916 |
| Marilyn Jackson | Daughter | — | 3 | ~1937 |
Census Appearances
1920
St Louis, …
Son, age 9
St Louis, Minnesota · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
St Louis, …
Son, age 20
St Louis, Minnesota · implied b. ~1910 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jackson |
| Given Name | Harold A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Laborer |
| Industry | Logging |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
St.-Louis-County, Minnesota
Head, age 30
St.-Louis-County, Minnesota · implied b. ~1910 — 4 household members
| Surname | Jackson |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Duluth Twps |
| 1935 Residence (County) | St. Louis |
| Occupation | Laborer |
| Industry | Grain Elevator |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 575 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Harold Jackson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Herman Jackson (~0.92 confidence) and father Herman Jackson (~0.92 confidence) and mother Fanny Jackson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Herman Jackson
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Herman Jackson
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Fanny Jackson
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Jackson
Head · 1940 · age 30 · b. ~1910 · Minnesota
★ 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 — St.-Louis-County, Minnesota
Open full size
1940 US Federal Census — St.-Louis-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01955-00655)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ellen D Abrahamson | 28 | Wife | — | Minnesota |
| 2 | Jean Abrahamson | 2 | Daughter | — | Minnesota |
| 3 | Norman Jackson | 53 | Head | Watchman | Finland |
| 4 | Fanny Jackson | 56 | Wife | — | Finland |
| 5 | Abner Jackson | 29 | Son | Laborer | Minnesota |
| 6 | Milton Jackson | 18 | Son | Laborer | Minnesota |
| 7 | Lillie Jackson | 15 | Daughter | — | Minnesota |
| 8 | Earl Jackson | 14 | Son | — | Minnesota |
| 9 | Ernest Jackson | 12 | Son | — | Minnesota |
| 10 | Gerald Jackson | 11 | Son | — | Minnesota |
| 11 | Sophia Anderson | 61 | Head | — | Finland |
| 12 | Rudolph Anderson | 33 | Son | Driver | Minnesota |
| 13 | Ione Anderson | 30 | Son | Laborer | Minnesota |
| 14 | Willard Anderson | 28 | Son | Laborer | Minnesota |
| 15 | Verna Anderson | 19 | Daughter | — | Minnesota |
| 16 | Virginia Anderson | 17 | Daughter | — | Minnesota |
| 17 | Harold Jackson THIS PERSON | 30 | Head | Laborer | Minnesota |
| 18 | Cecelia Jackson | 24 | Wife | — | Minnesota |
| 19 | Marilyn Jackson | 3 | Daughter | — | Minnesota |
| 20 | Lyle Jackson | 1 | Son | — | Minnesota |
| 21 | Nestor Mattson | 49 | Head | Laborer | Finland |
| 22 | Edith Mattson | 53 | Wife | — | Finland |
| 23 | Signe Mattson | 18 | Daughter | — | Minnesota |
| 24 | Dagmar Mattson | 16 | Daughter | — | Minnesota |
| 25 | Hilda Abrahamson | 59 | Head | — | Finland |
| 26 | Fred Abrahamson | 32 | Son | Farmer | Minnesota |
| 27 | Nina Abrahamson | 26 | Daughter | — | Minnesota |
| 28 | Matt Jacobson | 65 | Head | Farmer | Finland |
| 29 | Minnie Jacobson | 59 | Wife | — | Finland |
| 30 | Arvo Jacobson | 37 | Son | Labor | Minnesota |
| 31 | Nellie Jacobson | 33 | Daughter | — | Minnesota |
| 32 | Ernest Jacobson | 25 | Son | — | Minnesota |
| 33 | Henry Hill | 55 | Head | Farmer | Finland |
| 34 | Helga Hill | 52 | Wife | — | Finland |
| 35 | Eddie Hill | 28 | Son | Laborer | Minnesota |
| 36 | Viola Hill | 18 | Daughter | — | Minnesota |
| 37 | Maria Oberg | 65 | Head | — | Sweden |
| 38 | Carl Oberg | 42 | Son | — | Sweden |
| 39 | August Lavola | 69 | Head | — | Finland |
| 40 | Ida Lavola | 63 | Wife | — | Finland |
Pedigree Summary
Harold
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)