WC
William Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this William Clark across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed), with identified parents Harry — first a head (b.~1887), then head of a 4-person household.
Age 53
b. ~1887
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Clark |
| Given Name | William L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Trenton |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Chemist |
| Industry | Salt company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2100 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Chemist |
| Township / Ward | Trenton |
| Est. Birth Year | ~1887 |
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 |
|---|---|---|---|---|
| Gloria Clark | Daughter | — | 15 | ~1925 |
| William Clark | Head | — | 53 | ~1887 |
| Vincent Clark | Son | — | 16 | ~1924 |
| Adele Clark | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Wayne, Michigan
Son, age 32
Wayne, Michigan · implied b. ~1888 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1900 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Chemist |
| Industry | Salt Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Year of Naturalization | 1905 |
| Birthplace (normalized) | scotland |
1930
Wayne, Michigan
Head, age 43
Wayne, Michigan · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | William L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1889 |
| Age at First Marriage | 22 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Chemist |
| Industry | Salt Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Veteran | Yes |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Wayne-County, Michigan
Head, age 53
Wayne-County, Michigan · implied b. ~1887 — 4 household members
| Surname | Clark |
| Given Name | William L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Trenton |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Occupation | Chemist |
| Industry | Salt company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2100 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Clark (~0.60 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.6
Father
Harry Clark
b. ~1880
Source father
● Household
· direct · ~0.6
This person
Anchor record
William Clark
Head · 1940 · age 53 · b. ~1887 · Michigan
★ 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 — 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-t0627-01834-00197)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John B. Leifer | 44 | Head | Dentist | Michigan |
| 42 | Anna M. D. Leifer | 34 | Wife | — | Michigan |
| 43 | Gloria J. Leifer | 14 | Daughter | — | Michigan |
| 44 | John L. Leifer | 12 | Son | — | Michigan |
| 45 | James A. Post | 56 | Head | Traffic Agent | New York |
| 46 | Esther M. Post | 41 | Wife | — | Vermont |
| 47 | Walter W. Lauer | 39 | Head | Teacher | England |
| 48 | Beatrice F. Lauer | 35 | Wife | — | Indiana |
| 49 | Richard D. Lauer | 12 | Son | — | Indiana |
| 50 | Judith L. Lauer | 3 | Daughter | — | Michigan |
| 51 | Howard B. Kinyon | 60 | Head | Medical Doctor | Illinois |
| 52 | Justine H. Kinyon | 46 | Wife | — | Michigan |
| 53 | William L. Clark THIS PERSON | 53 | Head | Chemist | Scotland |
| 54 | Adele L. D. Clark | 39 | Wife | — | Missouri |
| 55 | Vincent M. Clark | 16 | Son | — | Michigan |
| 56 | Gloria S. Clark | 15 | Daughter | — | Michigan |
| 57 | Alton M. Kellum | 31 | Head | Manager | Indiana |
| 58 | Esther J. D. Kellum | 27 | Wife | Elem. Teacher | Michigan |
| 59 | Edward W. Herbert | 41 | Head | Auditor | Ohio |
| 60 | Lottie L. D. Herbert | 42 | Wife | — | Ohio |
| 61 | Thomas M. Herbert | 10 | Son | — | Michigan |
| 62 | Moni Plavsic | 67 | Head | — | Bulgaria |
| 63 | Stephanie Plavsic | 61 | Wife | — | Bulgaria |
| 64 | Mary M. Plavsic | 20 | Daughter | — | Michigan |
| 65 | Elizabeth M. Plavsic | 17 | Daughter | — | Michigan |
| 66 | Michael J. Guerro | 28 | Head | Salesman | Michigan |
| 67 | Eileen J. Guerro | 28 | Wife | — | Michigan |
| 68 | Dolores C. Guerro | 10 | Daughter | — | Michigan |
| 69 | Kenneth D. Guerro | 7 | Son | — | Michigan |
| 70 | Michael Guerro | 5 | Son | — | Michigan |
| 71 | Francis G. La Bell | 34 | Head | Yardmaster | Michigan |
| 72 | Lucy M. La Bell | 31 | Wife | — | Michigan |
| 73 | Robert G. La Bell | 13 | Son | — | Michigan |
| 74 | Raymond C. La Bell | 10 | Son | — | Michigan |
| 75 | Clarence R. Mate | 47 | Head | Electrician | Michigan |
| 76 | Bessie T. Mate | 48 | Wife | — | Ohio |
| 77 | Mary C. Mate | 11 | Daughter | — | Michigan |
| 78 | Betty A. Mate | 10 | Daughter | — | Michigan |
| 79 | Russell A. Manicko | 42 | Head | Manager | New York |
| 80 | Lydia V. Manicko | 43 | Wife | — | Michigan |
Pedigree Summary
William
Gen 1 · 1 parents
~0.6
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)