DC
David Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bay-County, Michigan
Our Model Tree links this David Clark across the 1920, 1930 and 1940 US Censuses in Bay-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 4-person household.
Age 62
b. ~1878
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bay-County, Michigan |
| Surname | Clark |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Williams Twp |
| 1935 Residence (County) | Bay |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Farmer |
| Township / Ward | Williams Twp |
| Est. Birth Year | ~1878 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| Sarah Clark | Daughter | — | 15 | ~1925 |
| Phyllis Clark | Daughter | — | 17 | ~1923 |
| Mary Clark | Spouse | — | 57 | ~1883 |
| David Clark | Head | — | 62 | ~1878 |
Census Appearances
1920
Bay, Michigan
Head, age 44
Bay, Michigan · implied b. ~1876 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Canada |
| Mother's Birthplace | Canada |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Bay, Michigan
Head, age 54
Bay, Michigan · implied b. ~1876 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 31 |
| Father's Birthplace | Canada English |
| Mother's Birthplace | Canada English |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Bay-County, Michigan
Head, age 62
Bay-County, Michigan · implied b. ~1878 — 4 household members
| Surname | Clark |
| Given Name | David |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Williams Twp |
| 1935 Residence (County) | Bay |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| 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 David Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
David Clark
Head · 1940 · age 62 · b. ~1878 · 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 — Bay-County, Michigan
Open full size
1940 US Federal Census — Bay-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01729-00612)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Omar Gilbert | 39 | Head | Farmer | Indiana |
| 2 | Charlotte Gilbert | 40 | Wife | — | Michigan |
| 3 | Mary Lou Gilbert | 7 | Daughter | — | Michigan |
| 4 | Victor Schoenmaker | 40 | Hired hand | Farmer | Michigan |
| 5 | Thomas White | 38 | Head | Laborer | Michigan |
| 6 | Mary White | 36 | Wife | — | Michigan |
| 7 | Mary White | 11 | Daughter | — | Michigan |
| 8 | Patricia White | 4 | Daughter | — | Michigan |
| 9 | Edwin Schrall | 27 | Head | Laborer | Michigan |
| 10 | Evelyn Schrall | 20 | Wife | — | Michigan |
| 11 | Barbara Ann Schrall | 0 | Daughter | — | Michigan |
| 12 | David Clark THIS PERSON | 62 | Head | Farmer | Michigan |
| 13 | Mary Clark | 57 | Wife | — | Canada |
| 14 | Phyllis Clark | 17 | Daughter | — | Michigan |
| 15 | Sarah Clark | 15 | Daughter | — | Michigan |
| 16 | Frank Szafranski | 39 | Head | Laborer | Michigan |
| 17 | Anna Szafranski | 36 | Wife | — | Michigan |
| 18 | Raymond Szafranski | 15 | Son | — | Michigan |
| 19 | Alice Szafranski | 14 | Daughter | — | Michigan |
| 20 | Margaret Szafranski | 3 | Daughter | — | Michigan |
| 21 | Joachim Jerzewski | 56 | Head | Carpenter | Poland |
| 22 | Louise Jerzewski | 49 | Wife | — | Poland |
| 23 | Theodore Jerzewski | 21 | Son | — | Pennsylvania |
| 24 | Chester Jerzewski | 18 | Son | — | Michigan |
| 25 | John Jerzewski | 17 | Son | — | Michigan |
| 26 | Walter Jerzewski | 14 | Son | — | Michigan |
| 27 | Ted Jerzewski | 13 | Son | — | Michigan |
| 28 | Steve Jerzewski | 11 | Son | — | Michigan |
| 29 | Geraldine Jerzewski | 10 | Daughter | — | Michigan |
| 30 | Angeline Jerzewski | 7 | Daughter | — | Michigan |
| 31 | Edward Jerzewski | 3 | Son | — | Michigan |
| 32 | Joseph Berg | 75 | Head | Farmer | Michigan |
| 33 | Josephine Berg | 58 | Wife | — | Germany |
| 34 | Joseph Berg | 16 | Son | — | Michigan |
| 35 | Lucille Berg | 15 | Daughter | — | Michigan |
| 36 | Lawrence Berg | 14 | Son | — | Michigan |
| 37 | George Berg | 10 | Son | — | Michigan |
| 38 | Joseph Sikanowicz | 36 | Head | Farmer | Michigan |
| 39 | Agnes Sikanowicz | 41 | Wife | — | Michigan |
| 40 | Mary Sikanowicz | 9 | Daughter | — | 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)