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Mary Madden — 1940 US Census Record
Model Tree available1940 United States Federal Census · Brown-County, Kansas
Our Model Tree links this Mary Madden across the 1920, 1930 and 1940 US Censuses in Brown-County, Kansas (XGBoost, ~Confirmed), with identified parents George — first a head (b.~1875), then head of a 2-person household.
Age 65
b. ~1875
Female
Head
Born: Iowa
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Brown-County, Kansas |
| Surname | Madden |
| Given Name | Mary L. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| 1935 Residence (City) | Mission township |
| 1935 Residence (County) | Brown |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Mission Township |
| Est. Birth Year | ~1875 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Madden | Head | — | 65 | ~1875 |
| Luella Madden | Daughter | — | 37 | ~1903 |
Census Appearances
1920
Brown, Kansas
Daughter, age 43
Brown, Kansas · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Madden |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Brown, Kansas
Head, age 55
Brown, Kansas · implied b. ~1875 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Madden |
| Given Name | May S |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| Age at First Marriage | 21 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Brown-County, Kansas
Head, age 65
Brown-County, Kansas · implied b. ~1875 — 2 household members
| Surname | Madden |
| Given Name | Mary L. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| 1935 Residence (City) | Mission township |
| 1935 Residence (County) | Brown |
| Income (1939) | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Mary Madden across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Leverton (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Leverton
b. ~1852
Source father
● Household
· direct · ~0.92
This person
Anchor record
Mary Madden
Head · 1940 · age 65 · b. ~1875 · Kansas
★ 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 — Brown-County, Kansas
Open full size
1940 US Federal Census — Brown-County, Kansas
Page Contents
25 people indexed on this census page (nara:1940:m-t0627-01221-00920)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lorene Jacobson | 2 | Daughter | — | Kansas |
| 2 | Mary L. Madden THIS PERSON | 65 | Head | — | Iowa |
| 3 | Luella G. Madden | 37 | Daughter | Commercial Educator | Iowa |
| 4 | Lloyd F. Vaught | 50 | Head | Farmer | Illinois |
| 5 | Carrie O. Vaught | 65 | Sister | — | Illinois |
| 6 | William O. Wilson | 91 | Head | — | New York |
| 7 | Louisa Wilson | 87 | Wife | — | Ohio |
| 8 | Horatio S. Simonton | 75 | Head | — | Ohio |
| 9 | Belle Simonton | 66 | Wife | — | Missouri |
| 10 | Fred S. Simonton | 46 | Son | — | Kansas |
| 11 | Grant D. Carpenter | 75 | Head | — | Kansas |
| 12 | Elizabeth Carpenter | 70 | Wife | — | Missouri |
| 13 | Bondell Carpenter | 12 | Granddaughter | — | Idaho |
| 14 | Charles B. Woodson | 58 | Head | Laborer | Tennessee |
| 15 | Pearl Q. Woodson | 53 | Wife | — | Nebraska |
| 16 | Ada Woodson | 19 | Daughter | Maid | Nebraska |
| 17 | Charles Woodson | 16 | Son | Janitor | Nebraska |
| 18 | Zoe Woodson | 7 | Daughter | — | Kansas |
| 19 | Martin E. Armstrong | 35 | Head | Farmer | Kansas |
| 20 | Agnes Armstrong | 33 | Wife | — | Kansas |
| 21 | Melvin Armstrong | 12 | Son | — | Kansas |
| 22 | Marjorie Armstrong | 8 | Daughter | — | Kansas |
| 23 | Dwight Armstrong | 6 | Son | — | Kansas |
| 24 | Todd Schearer | 45 | Head | Machinist | Kansas |
| 25 | Lola Schearer | 33 | Wife | — | Kansas |
Pedigree Summary
Mary
Gen 1 · 1 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)