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John Mcconnell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Keokuk-County, Iowa
Our Model Tree links this John Mcconnell across the 1920, 1930 and 1940 US Censuses in Keokuk-County, Iowa (XGBoost, ~Confirmed), with identified parents Frank & Brumph — first a head (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Keokuk-County, Iowa |
| Surname | McConnell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Richland City |
| 1935 Residence (County) | Keokuk County |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Richland City |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| John Mcconnell | Head | — | 25 | ~1915 |
| Annis Mcconnell | Spouse | — | 21 | ~1919 |
| Deloris Mcconnell | Daughter | — | 3 | ~1937 |
Census Appearances
1920
Keokuk, Iowa
Son, age 4
Keokuk, Iowa · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnell |
| Given Name | John F. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Keokuk, Iowa
Son, age 15
Keokuk, Iowa · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Age at First Marriage | 15 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | VOVV |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Keokuk-County, Iowa
Head, age 25
Keokuk-County, Iowa · implied b. ~1915 — 3 household members
| Surname | McConnell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Richland City |
| 1935 Residence (County) | Keokuk County |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 John Mcconnell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Mcconnell (~0.92 confidence) and father Brumph Mcconnell (~0.92 confidence) and mother Maud Mcconnell (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Mcconnell
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Brumph Mcconnell
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Maud Mcconnell
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mcconnell
Head · 1940 · age 25 · b. ~1915 · Iowa
★ 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 — Keokuk-County, Iowa
Open full size
1940 US Federal Census — Keokuk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01172-00911)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert R. Johnson | 7 | Son | — | Iowa |
| 42 | Ray G. Johnson | 5 | Son | — | Iowa |
| 43 | Russell F. Talley | 53 | Head | Repairman | Iowa |
| 44 | Alice M. Talley | 55 | Wife | — | Iowa |
| 45 | Duane R. Talley | 25 | Son | — | Iowa |
| 46 | E. May Lemley | 69 | Head | Farmer | Iowa |
| 47 | Jess T. Shultz | 58 | Head | Proprietor | Iowa |
| 48 | Glennie O. Shultz | 56 | Wife | — | Iowa |
| 49 | Hermit S. Oswalt | 28 | Head | Salesman | Iowa |
| 50 | I. Irene Oswalt | 26 | Wife | — | Iowa |
| 51 | Lyle B. Torrence | 39 | Head | Farm Laborer | Iowa |
| 52 | Nellie M. Torrence | 32 | Wife | — | Iowa |
| 53 | Louise E. Torrence | 14 | Daughter | — | Iowa |
| 54 | Lewis W. Torrence | 12 | Son | — | Iowa |
| 55 | Walter Sherby | 61 | Head | Sawyer | Iowa |
| 56 | Grace A. Sherby | 55 | Wife | — | Iowa |
| 57 | Stanley O. Sherby | 20 | Son | Farm Laborer | Iowa |
| 58 | M. Lorene Sherby | 16 | Daughter | Servant | Iowa |
| 59 | John Mcconnell THIS PERSON | 25 | Head | Farmer | Iowa |
| 60 | Annis Mcconnell | 21 | Wife | — | Iowa |
| 61 | Deloris M. Mcconnell | 3 | Daughter | — | Iowa |
| 62 | David C. Alme | 75 | Head | — | Ohio |
| 63 | Ida Alme | 72 | Wife | — | Iowa |
| 64 | Beatrice Klott | 30 | Head | Waitress | Iowa |
| 65 | Harold D. Klott | 8 | Son | — | Iowa |
| 66 | Jacaline L. Klott | 4 | Daughter | — | Iowa |
| 67 | Daraline D. Klott | 2 | Daughter | — | Iowa |
| 68 | Marjorie R. Nichols | 39 | Head | — | Iowa |
| 69 | Douglas L. Nichols | 19 | Son | New Worker | Iowa |
| 70 | Hermit L. Nichols | 15 | Son | — | Iowa |
| 71 | Louise A. Nichols | 11 | Daughter | — | Iowa |
| 72 | Quinton R. Nichols | 9 | Son | — | Iowa |
| 73 | Neal G. Nichols | 6 | Son | — | Iowa |
| 74 | Jack D. Nichols | 3 | Son | — | Iowa |
| 75 | Naoma Nichols | 2 | Daughter | — | Iowa |
| 76 | Deloss Hingles | 63 | Head | — | Iowa |
| 77 | Sara S. Hingles | 65 | Wife | — | Iowa |
| 78 | Shirley E. Hingles | 4 | Granddaughter | — | Iowa |
| 79 | Arminta C. Cook | 74 | Head | — | Tennessee |
| 80 | Lloyd Crumly | 77 | Lodger | — | Iowa |
Pedigree Summary
John
Gen 1 · 3 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)