JB
John Brady — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ellsworth-County, Kansas
Our Model Tree links this John Brady across the 1920, 1930 and 1940 US Censuses in Ellsworth-County, Kansas (XGBoost, ~Confirmed), with identified parents John & Arthur — first a son (b.~1906), then head of a 3-person household.
Age 34
b. ~1906
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ellsworth-County, Kansas |
| Surname | Brady |
| Given Name | John C. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Byers |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Colorado |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Carneiro Township |
| Est. Birth Year | ~1906 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| James Mullen | Head | — | 36 | ~1904 |
| John Brady | Son | — | 34 | ~1906 |
| Hayes Mccall | Son | — | 22 | ~1918 |
Census Appearances
1920
Ellsworth, Kansas
Son, age 14
Ellsworth, Kansas · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brady |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Ellsworth, Kansas
Son, age 24
Ellsworth, Kansas · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brady |
| Given Name | Johnnie |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Occupation | Laborer |
| Industry | Odd Jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Ellsworth-County, Kansas
Son, age 34
Ellsworth-County, Kansas · implied b. ~1906 — 3 household members
| Surname | Brady |
| Given Name | John C. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Byers |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Colorado |
| 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 John Brady across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Brady (~0.92 confidence) and father Arthur Brady (~0.92 confidence) and mother Hattie Brady (~0.92 confidence) and father James Mullen (~0.60 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.84
Father
John Brady
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Arthur Brady
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Hattie Brady
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
James Mullen
b. ~1904
Source father
● Household
· direct · ~0.6
This person
Anchor record
John Brady
Son · 1940 · age 34 · b. ~1906 · Kansas
★ You are viewing this record
Sibling
Hayes Mccall
Sibling · 1940 · age 22
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 — Ellsworth-County, Kansas
Open full size
1940 US Federal Census — Ellsworth-County, Kansas
Page Contents
3 people indexed on this census page (nara:1940:m-t0627-01231-00026)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James P. Mullen | 36 | Head | Farm Laborer | Kansas |
| 2 | Hayes Mccall | 22 | Son | Second Cook | Kansas |
| 3 | John C. Jr. Brady THIS PERSON | 34 | Son | — | Kansas |
Pedigree Summary
John + 1 sibling
Gen 1 · 4 parents
~0.84
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)