JL
James Leonard — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pottawatomie-County, Kansas
Our Model Tree links this James Leonard across the 1910, 1920, 1930 and 1940 US Censuses in Pottawatomie-County, Kansas (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 4-person household.
Age 67
b. ~1873
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawatomie-County, Kansas |
| Surname | Leonard |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Wamego |
| 1935 Residence (County) | Pottawatomie |
| Additional Details | |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Wamego |
| Est. Birth Year | ~1873 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| James Leonard | Head | — | 67 | ~1873 |
| Blair Leonard | Son | — | 27 | ~1913 |
| John Leonard | Son | — | 20 | ~1920 |
| Clara Leonard | Spouse | — | 55 | ~1885 |
Census Appearances
1910
Pottawatomie, Kansas
Head, age 35
Pottawatomie, Kansas · implied b. ~1875 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | James J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Missouri |
| Years Married | 4 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Painter |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1920
Pottawatomie, Kansas
Head, age 45
Pottawatomie, Kansas · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Painter |
| Industry | Decorator |
| Class of Worker | O.A. |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Pottawatomie, Kansas
Head, age 56
Pottawatomie, Kansas · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 31 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Painter |
| Industry | House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Radio Set | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Pottawatomie-County, Kansas
Head, age 67
Pottawatomie-County, Kansas · implied b. ~1873 — 4 household members
| Surname | Leonard |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Wamego |
| 1935 Residence (County) | Pottawatomie |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 James Leonard across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Leonard
Head · 1940 · age 67 · b. ~1873 · Kansas
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Pottawatomie-County, Kansas
Open full size
1940 US Federal Census — Pottawatomie-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01252-00417)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Paul, Carolyn Hall | 12 | Daughter | — | Kansas |
| 42 | Charles O. Covert | 54 | Head | Steam Helper | Kansas |
| 43 | Ruth Covert | 50 | Wife | — | Missouri |
| 44 | Charles A. Warren | 86 | Head | — | Indiana |
| 45 | Mary E. Warren | 79 | Wife | — | Indiana |
| 46 | Frances Prashun | 69 | Head | — | Kansas |
| 47 | William F. Holden | 67 | Head | Custodian | Ohio |
| 48 | Emma E. Holden | 66 | Wife | — | Kansas |
| 49 | Carl Moffitt | 41 | Head | Steam Helper | Nebraska |
| 50 | Sylvia Moffitt | 31 | Wife | — | Kansas |
| 51 | Carl Jr. Moffitt | 13 | Son | — | Kansas |
| 52 | Phyllis Moffitt | 9 | Daughter | — | Kansas |
| 53 | Judy Moffitt | 7 | Daughter | — | Kansas |
| 54 | Ernest Ladner | 40 | Head | Service Manager | Kansas |
| 55 | Cara Ladner | 35 | Wife | — | Missouri |
| 56 | Alanis Ladner | 17 | Daughter | — | Kansas |
| 57 | Kay Ladner | 9 | Daughter | — | Kansas |
| 58 | Ruth Ladner | 6 | Daughter | — | Kansas |
| 59 | Edward Miller | 42 | Head | Attendant | Kansas |
| 60 | Genevieve Miller | 37 | Wife | — | Kansas |
| 61 | Harold Miller | 17 | Son | — | Kansas |
| 62 | Charles Miller | 15 | Son | — | Kansas |
| 63 | Alfred Mcclain | 61 | Head | Station Agent | Kansas |
| 64 | Louise Mcclain | 60 | Wife | — | Kansas |
| 65 | James Leonard THIS PERSON | 67 | Head | — | Missouri |
| 66 | Clara Leonard | 55 | Wife | — | Kansas |
| 67 | Blair Leonard | 27 | Son | — | Kansas |
| 68 | John Leonard | 20 | Son | Meat Cutter | Kansas |
| 69 | Robert Griffith | 73 | Head | — | Indiana |
| 70 | Ora Bullman | 92 | Lodger | — | Iowa |
| 71 | August Huge | 66 | Head | — | Illinois |
| 72 | Dora Gettig | 73 | Lodger | — | Indiana |
| 73 | Ellen Reed | 70 | Head | — | Mississippi |
| 74 | Allie Brown | 62 | Head | — | Kansas |
| 75 | Marietta Brown | 34 | Daughter | Teacher | Kansas |
| 76 | Freddie Jennings | 13 | Grandson | — | Kansas |
| 77 | Henry Blakely | 54 | Head | — | Missouri |
| 78 | Elizabeth Blakely | 53 | Wife | Laundry | Kansas |
| 79 | Johnny Blakely | 19 | Son | — | Missouri |
| 80 | Sylvester Blakely | 15 | Son | — | Kansas |
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)