JL
John Leach — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Renville-County, Minnesota
Our Model Tree links this John Leach across the 1930 and 1940 US Censuses in Renville-County, Minnesota (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 7-person household.
Age 20
b. ~1920
Male
Son
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Renville-County, Minnesota |
| Surname | Leach |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Norfolk township |
| 1935 Residence (County) | Renville |
| Additional Details | |
| Occupation | Farmer |
| Industry | Labor |
| Class of Worker | PW |
| Income (1939) | 52 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Norfolk Township |
| Est. Birth Year | ~1920 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Francis Leach | Son | — | 13 | ~1927 |
| John Leach | Son | — | 20 | ~1920 |
| Edna Leach | Daughter | — | 15 | ~1925 |
| Walter Leach | Son | — | 19 | ~1921 |
| Julia Leach | Spouse | — | 50 | ~1890 |
| William Leach | Head | — | 58 | ~1882 |
| Reva Leach | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Renville, Minnesota
Son, age 10
Renville, Minnesota · implied b. ~1920 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leach |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Renville-County, Minnesota
Son, age 20
Renville-County, Minnesota · implied b. ~1920 — 7 household members
| Surname | Leach |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Norfolk township |
| 1935 Residence (County) | Renville |
| Occupation | Farmer |
| Industry | Labor |
| Class of Worker | PW |
| Income (1939) | 52 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Leach across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Leach
Son · 1940 · age 20 · b. ~1920 · Minnesota
★ You are viewing this record
Sibling
Francis Leach
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Leach
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Leach
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Reva Leach
Sibling · 1940 · age 17
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 — Renville-County, Minnesota
Open full size
1940 US Federal Census — Renville-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01952-00472)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joe Grund | 42 | Head | Farmer | Iowa |
| 2 | Brenda Grund | 36 | Wife | — | Minnesota |
| 3 | Earl Grund | 11 | Son | — | Minnesota |
| 4 | Lawrence Harms | 27 | Head | Farmer | Minnesota |
| 5 | Esther Harms | 32 | Wife | — | Minnesota |
| 6 | Marvin Darbow | 26 | Head | Farmer | Minnesota |
| 7 | Hellen Darbow | 28 | Wife | Farm | Minnesota |
| 8 | Richard Darbow | 7 | Son | — | Minnesota |
| 9 | Sharon Darbow | 2 | Daughter | — | Minnesota |
| 10 | Edward O. Billard | 37 | Head | Farm | Minnesota |
| 11 | Elizabeth Billard | 34 | Wife | — | Minnesota |
| 12 | Edward Jr. Billard | 3 | Son | — | Minnesota |
| 13 | Roger Revere | 38 | Head | Farmer | Minnesota |
| 14 | Ella Revere | 29 | Wife | — | Minnesota |
| 15 | Marion Revere | 8 | Daughter | — | Minnesota |
| 16 | Dean Revere | 7 | Daughter | — | Minnesota |
| 17 | Judith Revere | 1 | Daughter | — | Minnesota |
| 18 | Oliver | 38 | Partner | Farmer | Minnesota |
| 19 | — | 35 | Partner | Farmer | Minnesota |
| 20 | Avery Vince | 40 | Labor | Farm | Minnesota |
| 21 | Verda Whitman | 26 | Teacher | Teacher | South Dakota |
| 22 | John Thurston | 42 | Head | Farmer | Minnesota |
| 23 | Elizabeth Thurston | 34 | Wife | — | Oklahoma |
| 24 | Elizabeth Thurston | 10 | Daughter | — | Minnesota |
| 25 | John Thurston | 9 | Son | — | Minnesota |
| 26 | Robert Thurston | 7 | Son | — | Minnesota |
| 27 | Wesley Davis | 58 | Head | Farmer | Minnesota |
| 28 | Ester Davis | 50 | Wife | — | Minnesota |
| 29 | Opal Davis | 22 | Daughter | Maid | Minnesota |
| 30 | La Vonne Davis | 3 | Daughter | — | Minnesota |
| 31 | Austin Davis | 24 | Son | Farm | Minnesota |
| 32 | Luella Davis | 25 | Wife | — | Minnesota |
| 33 | Audrey Davis | 3 | Daughter | — | Minnesota |
| 34 | William Leach | 58 | Head | Farmer | Minnesota |
| 35 | Julia Leach | 50 | Wife | — | Minnesota |
| 36 | John Leach THIS PERSON | 20 | Son | Farmer | Minnesota |
| 37 | Walter Leach | 19 | Son | Farmer | Minnesota |
| 38 | Reva Leach | 17 | Daughter | Maid | Minnesota |
| 39 | Edna Leach | 15 | Daughter | — | Minnesota |
| 40 | Francis Leach | 13 | Son | — | Minnesota |
Related Census Records
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)