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John Mann — 1940 US Census Record
Model Tree available1940 United States Federal Census · Grant-County, Oklahoma
Our Model Tree links this John Mann across the 1910, 1920, 1930 and 1940 US Censuses in Grant-County, Oklahoma (XGBoost, ~Confirmed), with identified parents Larkin & Alice — first a head (b.~1890), then head of a 6-person household.
Age 50
b. ~1890
Male
Head
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Grant-County, Oklahoma |
| Surname | Mann |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Salt Fork Townsh. |
| 1935 Residence (County) | Grant |
| Additional Details | |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Farming |
| Township / Ward | Salt Fork Townsh |
| Est. Birth Year | ~1890 |
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 |
|---|---|---|---|---|
| Bill Mann | Son | — | 21 | ~1919 |
| Lavelle Mann | Other | — | 18 | ~1922 |
| Hattie Mann | Spouse | — | 46 | ~1894 |
| John Mann | Head | — | 50 | ~1890 |
| Larkin Mann | Son | — | 24 | ~1916 |
| Gilbert Mann | Son | — | 13 | ~1927 |
Census Appearances
1910
Grant, Oklahoma
Son, age 20
Grant, Oklahoma · implied b. ~1890 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mann |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Ohio |
| Occupation | Farm laborer |
| Industry | Home farm |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1920
Grant, Oklahoma
Head, age 30
Grant, Oklahoma · implied b. ~1890 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mann |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Kansas |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Ohio |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Year of Naturalization | M |
| Birthplace (normalized) | kansas |
1930
Grant, Oklahoma
Head, age 40
Grant, Oklahoma · implied b. ~1890 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mann |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 23 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Ohio |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Grant-County, Oklahoma
Head, age 50
Grant-County, Oklahoma · implied b. ~1890 — 6 household members
| Surname | Mann |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Salt Fork Townsh. |
| 1935 Residence (County) | Grant |
| Occupation | Farming |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| 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 Mann across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Larkin Mann (~0.92 confidence) and mother Alice Mann (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Larkin Mann
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Alice Mann
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mann
Head · 1940 · age 50 · b. ~1890 · Oklahoma
★ 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 — Grant-County, Oklahoma
Open full size
1940 US Federal Census — Grant-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03296-00356)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lester D. Cross | 27 | Head | Farming | Oklahoma |
| 2 | Eva M. Cross | 24 | Wife | — | Oklahoma |
| 3 | Earl L. Cross | 5 | Son | — | Oklahoma |
| 4 | Sue Ann Cross | 3 | Daughter | — | Oklahoma |
| 5 | Clifford Ray Cross | 1 | Son | — | Oklahoma |
| 6 | Russell Suter | 27 | Head | Farming | Oklahoma |
| 7 | Anna Belle Suter | 22 | Wife | — | Oklahoma |
| 8 | Mary Lou Suter | 4 | Daughter | — | Oklahoma |
| 9 | Harlan Suter | 2 | Son | — | Oklahoma |
| 10 | John H. Mann THIS PERSON | 50 | Head | Farming | Kansas |
| 11 | Hattie A. Mann | 46 | Wife | — | Kansas |
| 12 | Bill G. Mann | 21 | Son | Farm Laborer | Oklahoma |
| 13 | Gilbert M. Mann | 13 | Son | Farm Laborer | Oklahoma |
| 14 | Larkin J. Mann | 24 | Son | Mimeograph Operator | Oklahoma |
| 15 | Lavelle Mann | 18 | In-law | — | Oklahoma |
| 16 | Eliza L. House | 83 | Head | — | Missouri |
| 17 | Allen G. House | 53 | Son | Farming | Kansas |
| 18 | Emil Shrubshell | 38 | Head | Farming | Oklahoma |
| 19 | Hazel Shrubshell | 34 | Wife | — | Oklahoma |
| 20 | Lowell Shrubshell | 12 | Son | — | Oklahoma |
| 21 | Dwain Shrubshell | 8 | Son | — | Oklahoma |
| 22 | George W. Shrubshell | 73 | Head | Farming | Illinois |
| 23 | Elizabeth Shrubshell | 67 | Wife | — | Kansas |
| 24 | Luber H. Mulkey | 26 | Head | Farming | Oklahoma |
| 25 | Hettie Mulkey | 23 | Wife | — | Nebraska |
| 26 | Tyler Hubert Mulkey | 2 | Son | — | Oklahoma |
| 27 | Dana C. Mulkey | 40 | Head | Farming | Oklahoma |
| 28 | Thelma Mulkey | 36 | Wife | Music Teacher | Oklahoma |
| 29 | Monty Melvin Mulkey | 9 | Son | — | Oklahoma |
| 30 | Sue Elizabeth Mulkey | 5 | Daughter | — | Oklahoma |
| 31 | William Henderson | 29 | Head | Farming | Oklahoma |
| 32 | Grace D. Henderson | 25 | Wife | — | Oklahoma |
| 33 | Ray Kirby | 28 | Head | Farming | Oklahoma |
| 34 | Dorothy Kirby | 28 | Wife | — | Oklahoma |
| 35 | Norma Jean Kirby | 10 | Daughter | — | Oklahoma |
| 36 | Galean Kirby | 8 | Daughter | — | Oklahoma |
| 37 | Barbara Ann Kirby | 4 | Daughter | — | Oklahoma |
| 38 | Marilyn Kay Kirby | 2 | Daughter | — | Oklahoma |
| 39 | John D. Kirby | 67 | Head | — | Virginia |
| 40 | Cora Kirby | 62 | Wife | — | Kansas |
Related Census Records
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)