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Francis Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Kansas
Our Model Tree links this Francis Martin across the 1920, 1930 and 1940 US Censuses in Washington-County, Kansas (XGBoost, ~Confirmed), with identified parents Patrick & Mary — first a son (b.~1903), then head of a 3-person household.
Age 37
b. ~1903
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Kansas |
| Surname | Martin |
| Given Name | Francis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Kimeo |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Farming |
| Industry | Farmer |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Farming |
| Township / Ward | Kimeo |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Francis | Age | Birth yr |
|---|---|---|---|---|
| Francis Martin | Son | — | 37 | ~1903 |
| Mary Martin | Daughter | — | 34 | ~1906 |
| Hattie Martin | Head | — | 38 | ~1902 |
Census Appearances
1920
Washington, Kansas
Son, age 17
Washington, Kansas · implied b. ~1903 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Francis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Washington, Kansas
Son, age 27
Washington, Kansas · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Francis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Washington-County, Kansas
Son, age 37
Washington-County, Kansas · implied b. ~1903 — 3 household members
| Surname | Martin |
| Given Name | Francis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Kimeo |
| 1935 Residence (County) | Washington |
| Occupation | Farming |
| Industry | Farmer |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Francis Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick O'Brien (~0.92 confidence) and mother Mary O'Brien (~0.92 confidence) and mother Katherine Martin (~0.92 confidence) and father James Martin (~0.92 confidence) and mother Hattie Martin (~0.60 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.86
Father
Patrick O'Brien
b. ~1837
Source father
● Household
· direct · ~0.92
Mother
Mary O'Brien
b. ~1842
Source mother
● Household
· direct · ~0.92
Mother
Katherine Martin
b. ~1863
Source mother
● Household
· direct · ~0.92
Father
James Martin
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Hattie Martin
b. ~1902
Source mother
● Household
· direct · ~0.6
This person
Anchor record
Francis Martin
Son · 1940 · age 37 · b. ~1903 · Kansas
★ You are viewing this record
Sibling
Mary Martin
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Washington-County, Kansas
Open full size
1940 US Federal Census — Washington-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01265-00266)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jane Mcgrath | 47 | Wife | — | Kansas |
| 42 | Anna Mcgrath | 18 | Daughter | — | Kansas |
| 43 | Nellie Mcgrath | 11 | Daughter | — | Kansas |
| 44 | Hattie Martin | 38 | Head | — | Kansas |
| 45 | Francis Martin THIS PERSON | 37 | Son | Farming | Kansas |
| 46 | Mary Martin | 34 | Daughter | — | Kansas |
| 47 | Frank B. Anderson | 67 | Head | Farming | Kansas |
| 48 | Nellie Anderson | 67 | Wife | — | Kansas |
| 49 | William Anderson | 31 | Son | — | Nebraska |
| 50 | Ruth Anderson | 26 | Daughter | — | Missouri |
| 51 | Glen Depew | 40 | Head | Farming | Kansas |
| 52 | Earl Depew | 36 | Brother | Laborer | Kansas |
| 53 | Maggie Depew | 31 | Sister | — | Kansas |
| 54 | Gibbie Depew | 10 | Niece | — | Kansas |
| 55 | Kenneth Depew | 8 | Nephew | — | Kansas |
| 56 | Teresa Depew | 7 | Niece | — | Kansas |
| 57 | Carroll Depew | 4 | Niece | — | Kansas |
| 58 | Leanny Depew | 1 | Nephew | — | Kansas |
| 59 | Frank Mullen | 56 | Lodger | Laborer | Kansas |
| 60 | Irine Nellie | 61 | Head | — | Illinois |
| 61 | Grover Mcgrath | 55 | Head | Farming | Kansas |
| 62 | Nelle Horner | 58 | Sister | — | Kansas |
| 63 | Bert Horner | 66 | Brother | — | Iowa |
| 64 | Frank Hoover | 47 | Head | Farming | Kansas |
| 65 | Ellen Hoover | 36 | Wife | — | Kansas |
| 66 | Margaret Mcclellan | 57 | Head | — | Kansas |
| 67 | Donald Mcclellan | 24 | Son | Farming | Kansas |
| 68 | Jimmie Mcclellan | 18 | Son | New Worker | Kansas |
| 69 | Michael E. Cummins | 83 | Head | — | Mass. |
| 70 | Mary E. Cummins | 45 | Wife | — | Canada |
| 71 | Austin Cummins | 21 | Son | Farming | Kansas |
| 72 | Joe Cummins | 37 | Son | Farming | Kansas |
| 73 | Dan Cummins | 65 | Head | Farming | Kansas |
| 74 | Nellie Hennesy | 76 | Sister | — | Maine |
| 75 | Didrick G. Wichman | 60 | Head | Farming | Germany |
| 76 | Annie Wichman | 58 | Wife | — | Kansas |
| 77 | Rudolf Wichman | 21 | Son | New Worker | Kansas |
| 78 | Clifford Wichman | 20 | Son | New Worker | Kansas |
| 79 | John M. Curtis | 45 | Head | Farming | Kansas |
| 80 | Mabel Curtis | 43 | Wife | — | Kansas |
Pedigree Summary
Francis + 1 sibling
Gen 1 · 5 parents
~0.86
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)