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William Leach — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this William Leach across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 4-person household.
Age 20
b. ~1920
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Leach |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Occupation | Tool and die maker |
| Industry | Motor Car Co. |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Tool And Die Maker |
| Township / Ward | Detroit City |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Leach | Son | — | 20 | ~1920 |
| Raymond Leach | Son | — | 14 | ~1926 |
| Mildred Leach | Spouse | — | 42 | ~1898 |
| Albert Leach | Head | — | 43 | ~1897 |
Census Appearances
1930
Wayne, Michigan
Son, age 10
Wayne, Michigan · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leach |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Canada English |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Son, age 20
Wayne-County, Michigan · implied b. ~1920 — 4 household members
| Surname | Leach |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Occupation | Tool and die maker |
| Industry | Motor Car Co. |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 William Leach across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Leach
Son · 1940 · age 20 · b. ~1920 · Michigan
★ You are viewing this record
Sibling
Raymond Leach
Sibling · 1940 · age 14
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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01890-00870)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Christina Prince | 15 | Daughter | — | Michigan |
| 42 | Clifford Prince | 13 | Son | — | Michigan |
| 43 | Shirley Prince | 11 | Daughter | — | Michigan |
| 44 | Margaret Prince | 10 | Daughter | — | Michigan |
| 45 | Arnell Prince | 8 | Daughter | — | Michigan |
| 46 | Lynwood Prince | 6 | Son | — | Michigan |
| 47 | Charlotte Prince | 2 | Daughter | — | Michigan |
| 48 | William Elphick | 45 | Head | Inspector | England |
| 49 | Eliza Elphick | 42 | Wife | — | Ontario, Canada |
| 50 | William H. Elphick | 21 | Son | Punch Press Operator | Ontario, Canada |
| 51 | Earl R. Fear | 46 | Lodger | Grinder | Indiana |
| 52 | Harry Müller | 40 | Head | Yard Man | Illinois |
| 53 | Dorothy Müller | 31 | Wife | — | Michigan |
| 54 | William Olsen | 39 | Head | Die Maker | Minnesota |
| 55 | Mary Olsen | 36 | Wife | Baker | Illinois |
| 56 | George E. Miniear | 72 | Head | — | Michigan |
| 57 | Jessie L. Miniear | 60 | Wife | — | Ohio |
| 58 | L. Allen Chapman | 23 | Head | Tunnel-Man | Michigan |
| 59 | Loraine Chapman | 17 | Wife | — | Michigan |
| 60 | Harriett Chapman | 56 | Mother | Maid | Canada English |
| 61 | Clifford Chapman | 19 | Brother | Pickup Man | Michigan |
| 62 | Maurice Chapman | 36 | Head | Burner Welder | Michigan |
| 63 | Gerda Chapman | 26 | Wife | — | Canada English |
| 64 | Thomas Cruse | 8 | Step son | — | Michigan |
| 65 | Robert Slater | 65 | Head | Watchman | Kentucky |
| 66 | Ora Slater | 61 | Wife | — | Kentucky |
| 67 | Linia Hamblin | 34 | Head | Butcher | Kentucky |
| 68 | Rose Hamblin | 31 | Wife | — | Kentucky |
| 69 | Miles Kimball | 45 | Head | Steam Fitter | Canada English |
| 70 | Lillian Kimball | 42 | Wife | — | Canada English |
| 71 | John W. Kimball | 14 | Son | — | Canada English |
| 72 | Dorothy Kimball | 11 | Daughter | — | Michigan |
| 73 | Marion Kimball | 9 | Daughter | — | Michigan |
| 74 | Glenn Hillman | 21 | Head | Cushion Builder | Illinois |
| 75 | Wanita Hillman | 19 | Wife | — | Illinois |
| 76 | Norman Hillman | 0 | Son | — | Michigan |
| 77 | Albert Leach | 43 | Head | Machine Hand | Canada English |
| 78 | Mildred Leach | 42 | Wife | — | England |
| 79 | William Leach THIS PERSON | 20 | Son | Tool And Die Maker | Michigan |
| 80 | Raymond Leach | 14 | Son | — | Michigan |
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)