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John Mcguire — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clinton-County, Iowa
Our Model Tree links this John Mcguire across the 1920, 1930 and 1940 US Censuses in Clinton-County, Iowa (XGBoost, ~Confirmed), with identified parents Margaret & Thomas — first a head (b.~1901), then head of a 6-person household.
Age 39
b. ~1901
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clinton-County, Iowa |
| Surname | McGuire |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | De Witt |
| 1935 Residence (County) | Clinton |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | De Witt |
| Est. Birth Year | ~1901 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Lolita Mcguire | Daughter | — | 9 | ~1931 |
| Rosemary Mcguire | Daughter | — | 4 | ~1936 |
| John Mcguire | Head | — | 39 | ~1901 |
| James Wuszmann | Other | — | 17 | ~1923 |
| John Mcguire | Son | — | 8 | ~1932 |
| Mary Mcguire | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Clinton, Iowa
Son, age 19
Clinton, Iowa · implied b. ~1901 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGuire |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | Home Farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Clinton, Iowa
Other, age 29
Clinton, Iowa · implied b. ~1901 — 28 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McGuire |
| Given Name | John E |
| Relationship to Head | R |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 25 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | O |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Clinton-County, Iowa
Head, age 39
Clinton-County, Iowa · implied b. ~1901 — 6 household members
| Surname | McGuire |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | De Witt |
| 1935 Residence (County) | Clinton |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 6 |
| 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 Mcguire across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Margaret Mcguire (~0.92 confidence) and father Thomas Mcguire (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Margaret Mcguire
b. ~1871
Source mother
● Household
· direct · ~0.92
Father
Thomas Mcguire
b. ~1873
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Mcguire
Head · 1940 · age 39 · b. ~1901 · 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 — Clinton-County, Iowa
Open full size
1940 US Federal Census — Clinton-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01151-00086)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lynn Sorenson | 1 | Son | — | Iowa |
| 42 | Donald Michaelson | 22 | Hired Hand | Farm Labor | Iowa |
| 43 | Charles Hunter | 64 | Head | Farmer | Iowa |
| 44 | Florence Hunter | 19 | Daughter | — | Iowa |
| 45 | Charles Hunter | 18 | Son | — | Iowa |
| 46 | Joseph Hunter | 21 | Son | Farmer | Iowa |
| 47 | Mary Hunter | 26 | Wife of Son | — | Iowa |
| 48 | Charles Hunter | 0 | Son of Son | — | Iowa |
| 49 | Arthur Martensen | 31 | Head | Farmer | Iowa |
| 50 | Josephine Martensen | 31 | Wife | — | Iowa |
| 51 | Phyllis Martensen | 7 | Daughter | — | Iowa |
| 52 | John Harmes | 27 | Hired Hand | Farm Laborer | Iowa |
| 53 | Patricia Martensen | 4 | Daughter | — | Iowa |
| 54 | Lyle Stephenson | 47 | Head | Farmer | Iowa |
| 55 | Elsie Stephenson | 44 | Wife | — | Iowa |
| 56 | Louise Stephenson | 19 | Daughter | — | Iowa |
| 57 | Doris Stephenson | 10 | Daughter | — | Iowa |
| 58 | H. F. Shoemaker | 50 | Head | Laborer Farmer | Iowa |
| 59 | Minta Shoemaker | 38 | Wife | — | Iowa |
| 60 | John Mcguire THIS PERSON | 39 | Head | Farmer | Iowa |
| 61 | Mary Mcguire | 39 | Wife | — | Virginia |
| 62 | Lolita Mcguire | 9 | Daughter | — | Iowa |
| 63 | John T. Mcguire | 8 | Son | — | Iowa |
| 64 | Rosemary Mcguire | 4 | Daughter | — | Iowa |
| 65 | James Wuszmann | 17 | Cousin | — | Nebraska |
| 66 | Carl Carstensen | 53 | Head | Farmer | Iowa |
| 67 | Ella Carstensen | 45 | Wife | — | Iowa |
| 68 | Carl Carstensen | 16 | Son | — | Iowa |
| 69 | Julius Carstensen | 60 | Head | Farmer | Iowa |
| 70 | Inez Carstensen | 51 | Wife | — | Iowa |
| 71 | Gertrude Carstensen | 19 | Daughter | — | Iowa |
| 72 | Donald Carstensen | 16 | Son | Farmer | Iowa |
| 73 | Robert Carstensen | 10 | Son | — | Iowa |
| 74 | John H. Hansen | 54 | Head | Farmer | Iowa |
| 75 | Anna Hansen | 52 | Wife | — | Iowa |
| 76 | Alfred Hansen | 24 | Son | Farmer | Iowa |
| 77 | Margaret Hansen | 21 | Daughter | — | Iowa |
| 78 | Ralph Nielson | 44 | Head | Farmer | Iowa |
| 79 | Marie Nielson | 44 | Wife | — | Iowa |
| 80 | Elmer Nielson | 18 | Son | Laborer | Iowa |
Pedigree Summary
John
Gen 1 · 2 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)