WM
William Mcconnell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Maricopa-County, Arizona
Our Model Tree links this William Mcconnell across the 1920, 1930 and 1940 US Censuses in Maricopa-County, Arizona (XGBoost, ~Confirmed), with identified parents Clarence & William — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Wyoming
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Maricopa-County, Arizona |
| Surname | McConnell |
| Given Name | William J. Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Wyoming |
| 1935 Residence (City) | Gilbert Town |
| 1935 Residence (County) | Maricopa |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1150 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Wyoming |
| Birth Country | United States |
| Birthplace (normalized) | wyoming |
| Occupation | Teacher |
| Township / Ward | Gilbert Town |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Mcconnell | Head | — | 52 | ~1888 |
| Altha Mcconnell | Spouse | — | 49 | ~1891 |
| George Mcconnell | Son | — | 24 | ~1916 |
| William Mcconnell | Son | — | 22 | ~1918 |
| Roberta Mcconnell | Son | — | 27 | ~1913 |
Census Appearances
1920
Maricopa, Arizona
Son, age 2
Maricopa, Arizona · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Wyoming |
| Father's Birthplace | Illinois |
| Mother's Birthplace | West Virginia |
| Occupation | none |
| Birth State | Wyoming |
| Birth Country | United States |
| Birthplace (normalized) | wyoming |
1930
Maricopa, Arizona
Son, age 12
Maricopa, Arizona · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnell |
| Given Name | William C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Wyoming |
| Father's Birthplace | Illinois |
| Mother's Birthplace | West Virginia |
| Can Read/Write | Yes |
| Birth State | Wyoming |
| Birth Country | United States |
| Birthplace (normalized) | wyoming |
1940
Maricopa-County, Arizona
Son, age 22
Maricopa-County, Arizona · implied b. ~1918 — 5 household members
| Surname | McConnell |
| Given Name | William J. Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Wyoming |
| 1935 Residence (City) | Gilbert Town |
| 1935 Residence (County) | Maricopa |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1150 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Wyoming |
| Birth Country | United States |
| Birthplace (normalized) | wyoming |
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 William Mcconnell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Clarence Mcconnell (~0.92 confidence) and father William Mcconnell (~0.92 confidence) and mother Altha Mcconnell (~0.92 confidence) and father William Mcconnell (~0.92 confidence) and mother Alta Mcconnell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clarence Mcconnell
b. ~1885
Source father
● Household
· direct · ~0.92
Father
William Mcconnell
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Altha Mcconnell
b. ~1891
Source mother
● Household
· direct · ~0.92
Father
William Mcconnell
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Alta Mcconnell
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mcconnell
Son · 1940 · age 22 · b. ~1918 · Arizona
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Sibling
George Mcconnell
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roberta Mcconnell
Sibling · 1940 · age 27
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 — Maricopa-County, Arizona
Open full size
1940 US Federal Census — Maricopa-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00106-00049)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elmer Earl | 31 | Head | Truck Driver | Missouri |
| 2 | Leona Earl | 26 | Wife | — | Oklahoma |
| 3 | Elmer Jr Earl | 8 | Son | — | Oklahoma |
| 4 | Evelyn Earl | 7 | Daughter | — | Oklahoma |
| 5 | Lawrence Nunez | 65 | Head | — | Mexico |
| 6 | Mariana Nunez | 63 | Wife | — | Mexico |
| 7 | Lawrence Jr. Nunez | 21 | Son | Badminton | Arizona |
| 8 | Edmond Verrue | 43 | Head | Truck Driver | Arizona |
| 9 | Susie Verrue | 37 | Wife | — | Arizona |
| 10 | Edmond Jr Verrue | 16 | Son | — | Arizona |
| 11 | Henry Verrue | 10 | Son | — | Arizona |
| 12 | Sarah Verrue | 8 | Daughter | — | Arizona |
| 13 | Ernest Verrue | 6 | Son | — | Arizona |
| 14 | William C. Mcconnell | 52 | Head | Town Clerk | Illinois |
| 15 | Altha A. Mcconnell | 49 | Wife | — | West Virginia |
| 16 | Roberta A. Mcconnell | 27 | Son | — | Wyoming |
| 17 | George E. Mcconnell | 24 | Son | — | Wyoming |
| 18 | William J. Jr Mcconnell THIS PERSON | 22 | Son | Teacher | Wyoming |
| 19 | Porfirio Silver | 45 | Head | — | Mexico |
| 20 | Feliciana Silver | 38 | Wife | — | Mexico |
| 21 | Tony Silver | 11 | Son | — | Arizona |
| 22 | Arturo Silver | 9 | Son | — | Arizona |
| 23 | Andres Silver | 5 | Son | — | Arizona |
| 24 | Natalia Silver | 4 | Daughter | — | Arizona |
| 25 | Manuel Silver | 0 | Son | — | Arizona |
| 26 | Angel Garcia | 27 | Head | Grocery Clerk | Arizona |
| 27 | Velen Garcia | 26 | Wife | Farm Helper | Arizona |
| 28 | Carmen Garcia | 7 | Daughter | — | Arizona |
| 29 | Angel Garcia | 5 | Son | — | Arizona |
| 30 | Tony Garcia | 3 | Son | — | Arizona |
| 31 | Teddy Garcia | 0 | Son | — | Arizona |
| 32 | Gavino Castro | 23 | Head | Farm Helper | Arizona |
| 33 | Margaret Castro | 23 | Wife | — | Arizona |
| 34 | Helen Marie Castro | 1 | Daughter | — | Arizona |
| 35 | Alex Brinks | 33 | Head | — | California |
| 36 | Cruz Brinks | 28 | Wife | — | Arizona |
| 37 | Francis Brinks | 14 | Daughter | — | California |
| 38 | Oscar Brinks | 11 | Son | — | Arizona |
| 39 | Ramon Brinks | 7 | Son | — | Arizona |
| 40 | Margerite Brinks | 6 | Daughter | — | Arizona |
Pedigree Summary
William + 2 siblings
Gen 1 · 5 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)