HC
Harold Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Oakland-County, Michigan
Our Model Tree links this Harold Clark across the 1920, 1930 and 1940 US Censuses in Oakland-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 4-person household.
Age 45
b. ~1895
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Oakland-County, Michigan |
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Ferndale city |
| 1935 Residence (County) | Oakland |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Welder |
| Industry | Automobile Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1463 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Welder |
| Township / Ward | Ferndale City |
| Est. Birth Year | ~1895 |
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 Harold | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Clark | Spouse | — | 49 | ~1891 |
| Marvis Clark | Daughter | — | 17 | ~1923 |
| Harold Clark | Head | — | 45 | ~1895 |
| Harold Clark | Son | — | 23 | ~1917 |
Census Appearances
1920
Oakland, Michigan
Other, age 24
Oakland, Michigan · implied b. ~1896 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | England |
| Year of Immigration | 1913 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Steamfitter |
| Industry | Plumber |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | L.C. |
| Birth Country | England |
| Year of Naturalization | 1918 |
| Birthplace (normalized) | england |
1930
Oakland, Michigan
Other, age 34
Oakland, Michigan · implied b. ~1896 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Roomer |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Steam Fitter |
| Industry | Plumbing |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Oakland-County, Michigan
Head, age 45
Oakland-County, Michigan · implied b. ~1895 — 4 household members
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Ferndale city |
| 1935 Residence (County) | Oakland |
| Naturalization Status | Naturalized |
| Occupation | Welder |
| Industry | Automobile Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1463 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Harold Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harold Clark
Head · 1940 · age 45 · b. ~1895 · Michigan
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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 — Oakland-County, Michigan
Open full size
1940 US Federal Census — Oakland-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01799-00745)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth G. Miller | 26 | Wife | Switchboard | Michigan |
| 2 | Ellen L. Miller | 0 | Daughter | — | Michigan |
| 3 | John Papp | 37 | Head | Assembler | Hungary |
| 4 | Helen Papp | 38 | Wife | Machine Operator | Hungary |
| 5 | Clarence Papp | 13 | Son | — | Michigan |
| 6 | Edward Papp | 11 | Son | — | Michigan |
| 7 | Alfred S. Wallwork | 58 | Head | Metal Pattern Maker | Illinois |
| 8 | Ellen J. Wallwork | 54 | Wife | — | Canada |
| 9 | Ellen J. Wallwork | 25 | Daughter | Tool And Die Maker | Michigan |
| 10 | George D. Brown | 37 | Head | Retail Bread Salesman | Texas |
| 11 | Mary Ann Brown | 34 | Wife | — | Canada |
| 12 | Herbert G. Brown | 10 | Son | — | Michigan |
| 13 | Mary Alice Brown | 0 | Daughter | — | Michigan |
| 14 | John H. Stanley | 47 | Head | Crank Press | Canada |
| 15 | Frances M. Stanley | 44 | Wife | — | England |
| 16 | Leonard P. Stanley | 18 | Son | New Worker | Canada |
| 17 | Carl A. Wagner | 40 | Head | Machinist | Ohio |
| 18 | Bessie Wagner | 43 | Wife | — | Tennessee |
| 19 | Jean J. Wagner | 16 | Daughter | — | Michigan |
| 20 | Betty J. Wagner | 14 | Daughter | — | Ohio |
| 21 | Harold Clark THIS PERSON | 45 | Head | Welder | England |
| 22 | Elizabeth Clark | 49 | Wife | Dress Maker | England |
| 23 | Harold Jr. Clark | 23 | Son | Lathe Operator | England |
| 24 | Marvis Clark | 17 | Daughter | — | England |
| 25 | Hugh O. Liddicoat | 48 | Head | Constable | Michigan |
| 26 | Christine Liddicoat | 45 | Wife | — | Michigan |
| 27 | Mary J. Liddicoat | 14 | Daughter | — | Illinois |
| 28 | — | None | — | — | — |
| 29 | — | None | — | — | — |
| 30 | Edward Redmond | 37 | Head | Service Man | Michigan |
| 31 | Raymonde Redmond | 30 | Wife | — | France |
| 32 | Joan J. Redmond | 8 | Daughter | — | Michigan |
| 33 | William S. Scudder | 51 | Head | Salesman | Ohio |
| 34 | Margaret A. Scudder | 46 | Wife | — | Ohio |
| 35 | Juddy D. Scudder | 24 | Son | Paint Sprayer | Ohio |
| 36 | Daniel W. Scudder | 23 | Son | Salesman | Michigan |
| 37 | Betty Scudder | 21 | Daughter | Waitress | Michigan |
| 38 | June E. Scudder | 19 | Daughter | Saleswoman | Michigan |
| 39 | Harry J. Scudder | 17 | Son | — | Michigan |
| 40 | William T. Riley | 67 | Uncle | Janitor | Ohio |
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)