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Hazel Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Olmsted-County, Minnesota
Our Model Tree links this Hazel Martin across the 1920, 1930 and 1940 US Censuses in Olmsted-County, Minnesota (XGBoost, ~Confirmed), with identified parents Nellie & Nellie — first a daughter (b.~1893), then head of a 4-person household.
Age 47
b. ~1893
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Olmsted-County, Minnesota |
| Surname | Martin |
| Given Name | Hazel B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Rochester city |
| 1935 Residence (County) | Olmsted |
| Additional Details | |
| Occupation | Music teacher |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | C-1 |
| 1935 Residence | Same House |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Teacher |
| Township / Ward | Rochester City |
| Est. Birth Year | ~1893 |
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 Hazel | Age | Birth yr |
|---|---|---|---|---|
| Nellie Martins | Head | — | 72 | ~1868 |
| Habor Haugen | Other | — | 72 | ~1868 |
| Hazel Martin | Daughter | — | 47 | ~1893 |
| Clara Dahle | Other | — | 48 | ~1892 |
Census Appearances
1920
Olmsted, Minnesota
Daughter, age 27
Olmsted, Minnesota · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Hazel |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Kansas |
| Occupation | Teacher |
| Industry | Music |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Olmsted, Minnesota
Daughter, age 37
Olmsted, Minnesota · implied b. ~1893 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Hazel M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Kansas |
| Occupation | Instructor |
| Industry | Music |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Olmsted-County, Minnesota
Daughter, age 47
Olmsted-County, Minnesota · implied b. ~1893 — 4 household members
| Surname | Martin |
| Given Name | Hazel B. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Rochester city |
| 1935 Residence (County) | Olmsted |
| Occupation | Music teacher |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | C-1 |
| 1935 Residence | Same House |
| 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 Hazel Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Nellie Martin (~0.92 confidence) and mother Nellie Martins (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Nellie Martin
b. ~1866
Source mother
● Household
· direct · ~0.92
Mother
Nellie Martins
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Hazel Martin
Daughter · 1940 · age 47 · b. ~1893 · 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 — Olmsted-County, Minnesota
Open full size
1940 US Federal Census — Olmsted-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01944-00762)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Catherine D. Lukas | 35 | Wife | Secretary | Iowa |
| 42 | Mary M. Spangrud | 58 | Head | — | Minnesota |
| 43 | Gust A. Spangrud | 57 | Husband | Manager | Germany |
| 44 | Beatrice M. Spangrud | 33 | Daughter | Co-Manager | Minnesota |
| 45 | Myrtle M. Barker | 35 | Daughter | — | Minnesota |
| 46 | Nellie Martins | 72 | Head | — | Illinois |
| 47 | Hazel B. Martin THIS PERSON | 47 | Daughter | Music Teacher | Minnesota |
| 48 | Clara L. Dahle | 48 | Sister-in-law | Clerk | Minnesota |
| 49 | Habor C. Haugen | 72 | Lodger | — | Norway |
| 50 | Mabel G. Whiting | 57 | Head | Proprietor | Illinois |
| 51 | William J. Halling | 62 | Head | — | Minnesota |
| 52 | Rhoda E. Halling | 59 | Wife | — | Minnesota |
| 53 | Hubert E. Halling | 24 | Son | Laboratory Helper | Minnesota |
| 54 | Harley M. Smalley | 20 | Nephew | Laborer | Wisconsin |
| 55 | Garfield W. Benoit | 22 | Brother | Student Nurse | Minnesota |
| 56 | Roger D. Helmer | 24 | Head | Truck Driver | Minnesota |
| 57 | Annette M. Helmer | 25 | Wife | Bookkeeper | Minnesota |
| 58 | Maynard C. Nordskog | 36 | Head | Batter Maker | Minnesota |
| 59 | Hilda C. Nordskog | 23 | Wife | Bookkeeping | Minnesota |
| 60 | Charles A. Biel | 29 | Head | Interne | Indiana |
| 61 | Audrey E. Biel | 28 | Wife | Private Nurse | Louisiana |
| 62 | Halen T. Pierson | 22 | Head | Clerical Work | Minnesota |
| 63 | Agnes C. Pierson | 19 | Sister | Service Worker | Minnesota |
| 64 | Margaret Pierson | 28 | Sister | Register Of Deeds | Minnesota |
| 65 | Edward Ibrahim | 46 | Head | Traveling Salesman | Minnesota |
| 66 | Hazel D. Ibrahim | 45 | Wife | Proprietor | Minnesota |
| 67 | Delores Ibrahim | 16 | Daughter | — | Minnesota |
| 68 | John C. Ibrahim | 14 | Son | — | Minnesota |
| 69 | Katherine A. Ibrahim | 13 | Daughter | — | Minnesota |
| 70 | Anna D. Macmillan | 62 | Lodger | — | Canada-English |
| 71 | Melvin B. Rode | 35 | Lodger | Laborer | Minnesota |
| 72 | Angeline L. Wade | 42 | Head | Beauty Operator | Minnesota |
| 73 | Madonna D. Jensen | 19 | Daughter | — | Minnesota |
| 74 | Archie W. Dieter | 45 | Head | Conductor | Minnesota |
| 75 | Cora V. Dieter | 43 | Wife | — | Minnesota |
| 76 | Dorothy S. Dieter | 22 | Daughter | Singer | Minnesota |
| 77 | Phoebe A. Dieter | 70 | Mother | — | Minnesota |
| 78 | Herbert K. Hoard | 20 | Lodger | Musician | Nebraska |
| 79 | Syd W. Davey | 21 | Lodger | Musician | Minnesota |
| 80 | Sadie C. Dieter | 66 | Head | — | Minnesota |
Pedigree Summary
Hazel
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)