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Fred Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Buffalo-County, Wisconsin
Our Model Tree links this Fred Martin across the 1920, 1930 and 1940 US Censuses in Buffalo-County, Wisconsin (XGBoost, ~Confirmed), with identified parents Adolph & Emilia — first a head (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Buffalo-County, Wisconsin |
| Surname | Martin |
| Given Name | Fred O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Modena Village |
| 1935 Residence (County) | Buffalo |
| Additional Details | |
| Occupation | Garage Operator |
| Industry | Private Garage |
| Class of Worker | E |
| Hours Worked | 75 |
| Income (1939) | 15 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Garage Operator |
| Township / Ward | Modena Village |
| Est. Birth Year | ~1903 |
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 Fred | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Martin | Daughter | — | 5 | ~1935 |
| Fred Martin | Head | — | 37 | ~1903 |
| Roger Martin | Son | — | 13 | ~1927 |
| Ethel Martin | Spouse | — | 37 | ~1903 |
Census Appearances
1920
Buffalo, Wisconsin
Son, age 17
Buffalo, Wisconsin · implied b. ~1903 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Fritz O. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Buffalo, Wisconsin
Other, age 27
Buffalo, Wisconsin · implied b. ~1903 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Fritz O. |
| Relationship to Head | O |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 22 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Mechanic |
| Industry | Auto Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | 1800 |
| Radio Set | no |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Buffalo-County, Wisconsin
Head, age 37
Buffalo-County, Wisconsin · implied b. ~1903 — 4 household members
| Surname | Martin |
| Given Name | Fred O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Modena Village |
| 1935 Residence (County) | Buffalo |
| Occupation | Garage Operator |
| Industry | Private Garage |
| Class of Worker | E |
| Hours Worked | 75 |
| Income (1939) | 15 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Fred Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Adolph Martin (~0.92 confidence) and mother Emilia Martin (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Adolph Martin
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Emilia Martin
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Fred Martin
Head · 1940 · age 37 · b. ~1903 · Wisconsin
★ 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 — Buffalo-County, Wisconsin
Open full size
1940 US Federal Census — Buffalo-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04462-00287)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard D. Nelson | 2 | Son | — | Wisconsin |
| 2 | Bertha E. Lauderbach | 71 | Head | — | Wisconsin |
| 3 | Ernest E. Lauderbach | 31 | Son | Auto Mechanic | Wisconsin |
| 4 | Edmund E. Anderson | 68 | Head | — | Wisconsin |
| 5 | Rose Anderson | 65 | Wife | — | Wisconsin |
| 6 | Lyman H. Anderson | 24 | Son | Blacksmith | Wisconsin |
| 7 | Adolph C. Martin | 71 | Head | Farmer | Wisconsin |
| 8 | Emilie Martin | 68 | Wife | — | Wisconsin |
| 9 | Martha D. Stelmark | 27 | Head | — | Wisconsin |
| 10 | Harry P. Stelmark | 6 | Son | — | Wisconsin |
| 11 | Leigh S. Stelmark | 4 | Son | — | Wisconsin |
| 12 | Oscar F. Lueck | 66 | Head | — | Wisconsin |
| 13 | Anna M. Lueck | 62 | Wife | — | Pennsylvania |
| 14 | Martha E. Bruenn | 44 | Boarder | Teacher | Wisconsin |
| 15 | Ben O. Erickson | 59 | Head | Electrician | Wisconsin |
| 16 | Ollie H. Lumsdal | 64 | Head | Merchant | Wisconsin |
| 17 | Selma C. Lumsdal | 58 | Wife | — | Wisconsin |
| 18 | Irene S. A. Lumsdal | 20 | Daughter | — | Wisconsin |
| 19 | Fred O. Martin THIS PERSON | 37 | Head | Garage Operator | Wisconsin |
| 20 | Ethel Martin | 37 | Wife | — | Wisconsin |
| 21 | Roger R. Martin | 13 | Son | — | Wisconsin |
| 22 | Dorothy R. Martin | 5 | Daughter | — | Wisconsin |
| 23 | Mervin L. Rud | 35 | Head | Cutting Timber | Iowa |
| 24 | Claudine M. Rud | 31 | Wife | — | Minnesota |
| 25 | George L. Rud | 10 | Son | — | Minnesota |
| 26 | Valeria M. Rud | 4 | Daughter | — | Minnesota |
| 27 | Johanna Lather | 35 | Head | House Keeper | Wisconsin |
| 28 | Bertha Schueler | 50 | Sister | Practical Nurse | Wisconsin |
| 29 | Edward Christopherson | 39 | Head | Truck Driver | Wisconsin |
| 30 | Agnes M. Christopherson | 35 | Wife | — | Wisconsin |
| 31 | Raymond W. Christopherson | 13 | Son | — | Wisconsin |
| 32 | Beverly A. Christopherson | 12 | Daughter | — | Wisconsin |
| 33 | Lyle M. Christopherson | 9 | Son | — | Wisconsin |
| 34 | Allen E. Christopherson | 5 | Son | — | Wisconsin |
| 35 | Dale H. Christopherson | 1 | Son | — | Wisconsin |
| 36 | Palmer R. Peterson | 22 | Hired Hand | Truck Driver | Wisconsin |
| 37 | Ole Ollum | 68 | Head | Church Janitor | Wisconsin |
| 38 | Thea O. Ollum | 56 | Wife | — | Wisconsin |
| 39 | June E. Ollum | 16 | Daughter | — | Wisconsin |
| 40 | Kenneth M. Ollum | 14 | Son | — | Wisconsin |
Pedigree Summary
Fred
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)