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Mary Leach — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Adams-County, Idaho
Our Model Tree links this Mary Leach across the 1930 and 1940 US Censuses in Adams-County, Idaho (XGBoost, ~Confirmed) — first a spouse (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Female
Spouse
Born: Idaho
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Adams-County, Idaho |
| Surname | Leach |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Idaho |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Adams |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Idaho |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
| Township / Ward | Council |
| Est. Birth Year | ~1912 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Tommy Leach | Son | — | 5 | ~1935 |
| Daniel Leach | Head | — | 28 | ~1912 |
| Mary Leach | Spouse | — | 28 | ~1912 |
| Violet Leach | Daughter | — | 5 | ~1935 |
| Ira Leach | Son | — | 8 | ~1932 |
Census Appearances
1930
Adams, Idaho
Spouse, age 18
Adams, Idaho · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leach |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Married |
| Birthplace | Idaho |
| Age at First Marriage | 16 |
| Father's Birthplace | United States |
| Mother's Birthplace | United States |
| Can Read/Write | Yes |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
1940
Adams-County, Idaho
Spouse, age 28
Adams-County, Idaho · implied b. ~1912 — 5 household members
| Surname | Leach |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Idaho |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Adams |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Idaho |
| Birth State | Idaho |
| Birth Country | United States |
| Birthplace (normalized) | idaho |
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 Mary Leach across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Leach
Spouse · 1940 · age 28 · b. ~1912 · Idaho
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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 — Adams-County, Idaho
Open full size
1940 US Federal Census — Adams-County, Idaho
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00737-00076)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ezra V. Connaught | 30 | Head | Laborer | Idaho |
| 2 | Lucille M. Connaught | 23 | Wife | — | Idaho |
| 3 | Vernon W. Connaught | 4 | Son | — | Idaho |
| 4 | Milton M. Connaught | 2 | Son | — | Idaho |
| 5 | Nellie B. Harris | 57 | Head | — | California |
| 6 | Floyd Murphy | 25 | Nephew | Laborer | Nebraska |
| 7 | S. J. Denney | 56 | Head | Laborer | Idaho |
| 8 | Mary Denney | 50 | Wife | — | Idaho |
| 9 | Lois Denney | 12 | Daughter | — | Idaho |
| 10 | A. E. Patton | 33 | Head | Laborer | Idaho |
| 11 | Gertrude Patton | 26 | Wife | — | Idaho |
| 12 | William H. Kinnoucker | 25 | Head | Laborer | Idaho |
| 13 | Irene C. Kinnoucker | 22 | Wife | — | Virginia |
| 14 | Franklin E. Kinnoucker | 4 | Son | — | Idaho |
| 15 | Joyce L. Kinnoucker | 2 | Daughter | — | Idaho |
| 16 | Josephine S. Gordon | 56 | Mother | — | California |
| 17 | D. K. Lindsay | 47 | Head | — | California |
| 18 | Zaya P. Lindsay | 47 | Wife | — | Idaho |
| 19 | R. H. Gilbert | 53 | Head | Manager | Illinois |
| 20 | Essie Gilbert | 50 | Wife | — | Idaho |
| 21 | Willie J. Gilbert | 11 | Son | — | Idaho |
| 22 | Norman D. Gilbert | 3 | Son | — | Idaho |
| 23 | Edith E. Grey | 58 | Head | Operator | Idaho |
| 24 | Frank A. Grey | 25 | Son | Laborer | Idaho |
| 25 | Eloise G. Gardner | 26 | Daughter | — | Idaho |
| 26 | James E. Gardner | 8 | Son | — | Oregon |
| 27 | Ingrid M. Gardner | 4 | Daughter | — | Idaho |
| 28 | Orie H. Ware | 28 | Head | Laborer & Clerk | Idaho |
| 29 | Vera P. Ware | 27 | Wife | Clerk | Idaho |
| 30 | June R. Ware | 7 | Daughter | — | Idaho |
| 31 | Barbara J. Ware | 6 | Daughter | — | Idaho |
| 32 | Phyllis Ware | 2 | Daughter | — | Idaho |
| 33 | Daniel Leach | 28 | Head | Laborer | Idaho |
| 34 | Mary E. Leach THIS PERSON | 28 | Wife | — | Idaho |
| 35 | Ira E. Leach | 8 | Son | — | Idaho |
| 36 | Violet R. Leach | 5 | Daughter | — | Idaho |
| 37 | Tommy A. Leach | 5 | Son | — | Idaho |
| 38 | Joshua Frank Gleason | 20 | Head | Laborer | Michigan |
| 39 | Lyman W. Bodkin | 27 | Head | Laborer | Washington |
| 40 | Zelma G. Bodkin | 22 | Wife | — | Idaho |
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)