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John Mcnamara — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wyandotte-County, Kansas
Our Model Tree links this John Mcnamara across the 1920, 1930 and 1940 US Censuses in Wyandotte-County, Kansas (XGBoost, ~Confirmed), with identified parents Patrick & Lily — first a son (b.~1912), then head of a 4-person household.
Age 28
b. ~1912
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wyandotte-County, Kansas |
| Surname | McNamara |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Delaware Township |
| 1935 Residence (County) | Wyandotte |
| Additional Details | |
| Occupation | Trucker |
| Industry | Trucking |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 420 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Trucker |
| Township / Ward | Delaware Township |
| Est. Birth Year | ~1912 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Lily Mcnamara | Head | — | 49 | ~1891 |
| Alice Mcnamara | Other | — | 26 | ~1914 |
| John Mcnamara | Son | — | 28 | ~1912 |
| Patrick Mcnamara | Son | — | 13 | ~1927 |
Census Appearances
1920
Wyandotte, Kansas
Son, age 7
Wyandotte, Kansas · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | John M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Missouri |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Wyandotte, Kansas
Son, age 18
Wyandotte, Kansas · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McNamara |
| Given Name | John M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Missouri |
| Occupation | Farm Laborer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Wyandotte-County, Kansas
Son, age 28
Wyandotte-County, Kansas · implied b. ~1912 — 4 household members
| Surname | McNamara |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Delaware Township |
| 1935 Residence (County) | Wyandotte |
| Occupation | Trucker |
| Industry | Trucking |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 420 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Mcnamara across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Mcnamara (~0.92 confidence) and mother Lily Mcnamara (~0.92 confidence) and father Riley Mcnamara (~0.92 confidence) and mother Lily Mcnamara (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Patrick Mcnamara
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Lily Mcnamara
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Riley Mcnamara
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Lily Mcnamara
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mcnamara
Son · 1940 · age 28 · b. ~1912 · Kansas
★ You are viewing this record
Sibling
Patrick Mcnamara
Sibling · 1940 · age 13
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 — Wyandotte-County, Kansas
Open full size
1940 US Federal Census — Wyandotte-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01266-00351)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James C. Kreider | 14 | Son | — | Kansas |
| 2 | Lily R. Mcnamara | 49 | Head | Farmer | Missouri |
| 3 | John Mcnamara THIS PERSON | 28 | Son | Trucker | Kansas |
| 4 | Patrick J. Mcnamara | 13 | Son | — | Kansas |
| 5 | Alice May Mcnamara | 26 | Daughter in law | — | Kansas |
| 6 | Phillip Damico | 32 | Head | Laborer | Missouri |
| 7 | Mabel Damico | 31 | Wife | — | Missouri |
| 8 | Euleman Leona Damico | 19 | Daughter | — | Missouri |
| 9 | Walter R. Wicklund | 31 | Head | Laborer | Kansas |
| 10 | Flossie Wicklund | 25 | Wife | — | Kansas |
| 11 | Gene R. Wicklund | 7 | Son | — | Kansas |
| 12 | Norman Wicklund | 5 | Son | — | Kansas |
| 13 | Otto R. Wendt | 33 | Head | Farmer | Kansas |
| 14 | Gladys Wendt | 31 | Wife | — | Texas |
| 15 | Betty Ann Wendt | 8 | Daughter | — | Kansas |
| 16 | William O. Wendt | 6 | Son | — | Kansas |
| 17 | Arlene Wendt | 2 | Daughter | — | Kansas |
| 18 | Roy Maravilla | 42 | Head | Laborer | Kansas |
| 19 | Ruth B. Maravilla | 39 | Wife | — | Oklahoma |
| 20 | Cleo B. Maravilla | 16 | Son | — | Kansas |
| 21 | Rowina Maravilla | 15 | Daughter | — | Kansas |
| 22 | Isaac Maravilla | 8 | Son | — | Kansas |
| 23 | Monroe S. Payne | 55 | Head | Switchman | Kansas |
| 24 | Grace B. Payne | 54 | Wife | — | Kansas |
| 25 | Hattie La Favette | 74 | Mother in law | — | Kansas |
| 26 | Cora Marshall | 48 | Head | — | Missouri |
| 27 | Marlyn Marshall | 15 | Son | — | Kansas |
| 28 | Glenn Marshall | 13 | Son | — | Kansas |
| 29 | Ivan Marshall | 10 | Son | — | Kansas |
| 30 | George D. Layton | 32 | Head | Laborer | Kansas |
| 31 | Agnes Layton | 32 | Wife | — | Oklahoma |
| 32 | Maude Noble | 48 | Sister | — | Kansas |
| 33 | Ethel Yarnell | 58 | Head | — | Missouri |
| 34 | Rosie Runkles | 59 | Head | — | Illinois |
| 35 | Clarence Runkles | 25 | Son | — | Nebraska |
| 36 | Charles De Maranville | 37 | Head | Repairman | Kansas |
| 37 | Mildred De Maranville | 31 | Wife | — | Missouri |
| 38 | Charles M. De Maranville | 13 | Son | — | Kansas |
| 39 | Billie Gene De Maranville | 11 | Son | — | Kansas |
| 40 | Betty M. De Maranville | 10 | Daughter | — | Kansas |
Pedigree Summary
John + 1 sibling
Gen 1 · 4 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)