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Harold Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hennepin-County, Minnesota
Our Model Tree links this Harold Martin across the 1920, 1930 and 1940 US Censuses in Hennepin-County, Minnesota (XGBoost, ~Confirmed), with identified parents Matt & Anna — first a head (b.~1905), then head of a 5-person household.
Age 35
b. ~1905
Male
Head
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hennepin-County, Minnesota |
| Surname | Martin |
| Given Name | Harold P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Minneapolis |
| 1935 Residence (County) | Hennepin |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Laborer |
| Industry | Arror project |
| Class of Worker | GW |
| Hours Worked | 50 |
| Income (1939) | 605 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Laborer |
| Township / Ward | Minneapolis |
| Est. Birth Year | ~1905 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Cora Martin | Spouse | — | 31 | ~1909 |
| Marlys Martin | Daughter | — | 7 | ~1933 |
| Richard Martin | Son | — | 10 | ~1930 |
| Harold Martin | Head | — | 35 | ~1905 |
| Ronald Martin | Son | — | 3 | ~1937 |
Census Appearances
1920
Hennepin, Minnesota
Son, age 15
Hennepin, Minnesota · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Norway |
| Year of Immigration | 1905 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1930
Hennepin, Minnesota
Son, age 25
Hennepin, Minnesota · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Harold P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Norway |
| Year of Immigration | 1905 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Washer |
| Industry | Laundry Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Hennepin-County, Minnesota
Head, age 35
Hennepin-County, Minnesota · implied b. ~1905 — 5 household members
| Surname | Martin |
| Given Name | Harold P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Minneapolis |
| 1935 Residence (County) | Hennepin |
| Naturalization Status | Naturalized |
| Occupation | Laborer |
| Industry | Arror project |
| Class of Worker | GW |
| Hours Worked | 50 |
| Income (1939) | 605 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Matt Martin (~0.92 confidence) and mother Anna Martin (~0.92 confidence) and father Matt Martin (~0.50 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.78
Father
Matt Martin
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Anna Martin
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
Matt Martin
b. ~1908
Source father
● Household
· direct · ~0.5
This person
Anchor record
Harold Martin
Head · 1940 · age 35 · b. ~1905 · 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 — Hennepin-County, Minnesota
Open full size
1940 US Federal Census — Hennepin-County, Minnesota
Page Contents
33 people indexed on this census page (nara:1940:m-t0627-01986-00754)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harold P. Martin THIS PERSON | 35 | Head | Laborer | Norway |
| 42 | Cora Martin | 31 | Wife | — | Minnesota |
| 43 | Richard Martin | 10 | Son | — | Minnesota |
| 44 | Marlys Martin | 7 | Daughter | — | Minnesota |
| 45 | Ronald Martin | 3 | Son | — | Minnesota |
| 46 | Charles Eschak | 57 | Head | Laborer | Poland |
| 47 | Arthur Anderson | 48 | Head | Distributor | Minnesota |
| 48 | Cathryn Anderson | 46 | Wife | Saleslady | Minnesota |
| 49 | Henry Husebo | 46 | Head | Park Keeper | Minnesota |
| 50 | Elvira Husebo | 46 | Wife | — | Minnesota |
| 51 | Emil B. Duncan | 73 | Head | — | Sweden |
| 52 | Augusta Duncan | 68 | Wife | — | Sweden |
| 53 | Harry E. Roslin | 47 | Head | — | New Hampshire |
| 54 | Hazel E. Roslin | 47 | Wife | Bookkeeper | Minnesota |
| 55 | Harold E. Roslin | 9 | Son | — | Minnesota |
| 56 | Janet A. Roslin | 6 | Daughter | — | Minnesota |
| 57 | Lois E. Roslin | 7 | Daughter | — | Minnesota |
| 58 | Alex Alson | 41 | Head | Fireman | Minnesota |
| 59 | Thora Alson | 42 | Wife | Power Machine Operator | Minnesota |
| 60 | Robert Alson | 14 | Son | — | Minnesota |
| 61 | Andrew Banick | 36 | Head | Auto Mechanic | Minnesota |
| 62 | Helen Banick | 32 | Wife | — | Minnesota |
| 63 | Elara Banick | 5 | Daughter | — | Minnesota |
| 64 | Gary Banick | 5 | Son | — | Minnesota |
| 65 | Lucerne Banick | 3 | Daughter | — | Minnesota |
| 66 | Undonna Banick | 1 | Daughter | — | Minnesota |
| 67 | John C. Kylander | 40 | Lodger | Cutter | Sweden |
| 68 | Carl Gustafson | 31 | Head | Cutter | Minnesota |
| 69 | Verona Gustafson | 30 | Wife | — | Minnesota |
| 70 | Carl Jr. Gustafson | 9 | Son | — | Minnesota |
| 71 | Gustave Helberg | 33 | Head | Painter | Sweden |
| 72 | May Helberg | 31 | Wife | Machine Operator | Sweden |
| 73 | Eleanor Scales | 19 | Daughter | Canning | Minnesota |
Related Census Records
Pedigree Summary
Harold
Gen 1 · 3 parents
~0.78
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)