HC
Harold Clark — 1930 US Census Record
Model Tree available1930 United States Federal Census · Oakland, Michigan
Our Model Tree links this Harold Clark across the 1920, 1930 and 1940 US Censuses in Oakland, Michigan (XGBoost, ~Confirmed), with identified parents Judson & Bertha — first a head (b.~1899), then head of a 3-person household.
Age 31
b. ~1899
Male
Head
Born: Michigan
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Oakland, Michigan |
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 26 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Michigan |
| Additional Details | |
| Occupation | Retail merchant |
| Industry | Milk |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Retail Merchant |
| Township / Ward | Lake Orion Village |
| Est. Birth Year | ~1899 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| Harold Clark | Head | — | 31 | ~1899 |
| Dorothy Clark | Spouse | — | 28 | ~1902 |
| Helen Clark | Daughter | — | 4 | ~1926 |
Census Appearances
1920
Oakland, Michigan
Son, age 21
Oakland, Michigan · implied b. ~1899 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Michigan |
| Occupation | Salesman |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Oakland, Michigan
Head, age 31
Oakland, Michigan · implied b. ~1899 — 3 household members
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 26 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Michigan |
| Occupation | Retail merchant |
| Industry | Milk |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Oakland-County, Michigan
Head, age 42
Oakland-County, Michigan · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clarke |
| Given Name | Harold G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit |
| 1935 Residence (County) | Wayne |
| Occupation | public accountant |
| Industry | accountant company |
| Class of Worker | PW |
| Hours Worked | 65 |
| Income (1939) | 5000 |
| Highest Grade | C 4 |
| 1935 Residence | Michigan |
| 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 Harold Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Judson Clark (~0.92 confidence) and mother Bertha Clark (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Judson Clark
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Bertha Clark
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Clark
Head · 1930 · age 31 · b. ~1899 · Michigan
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Oakland, Michigan
Open full size
1930 US Federal Census — Oakland, Michigan
Page Contents
50 people indexed on this census page (ia:1930:michigancensus00reel1017:0206)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Lunger | 21 | Head | Laborer | Michigan |
| 52 | Nita Lunger | 21 | Daughter | — | Michigan |
| 53 | Brady Marie Lunger | 18 | Daughter | — | Michigan |
| 54 | Vern Lunger | 14 | Son | — | Michigan |
| 55 | Geneva Lunger | 8 | Daughter | — | Michigan |
| 56 | Elmira Lunger | 78 | Mother | — | Michigan |
| 57 | Watson Trowbridge | 71 | Head | Carpenter | Indiana |
| 58 | Jennie Trowbridge | 70 | Wife | — | Indiana |
| 59 | Harold Collins | 28 | Head | Buffer | Ohio |
| 60 | Mary Collins | 19 | Wife | — | Malta |
| 61 | Charles Collins | 7 | Son | — | Michigan |
| 62 | Russell Collins | 5 | Son | — | Michigan |
| 63 | Cecelia Collins | 2 | Daughter | — | Michigan |
| 64 | Harold Jr. Collins | 1 | Son | — | Michigan |
| 65 | Edgar B. Pratt | 30 | Head | Teacher | Massachusetts |
| 66 | Daisy L. Pratt | 29 | Wife | — | Massachusetts |
| 67 | Richard Silver | 35 | Head | Retail Merchant | Indiana |
| 68 | Zella Silver | 39 | Wife | — | Indiana |
| 69 | Earl Silver | 13 | Son | — | Michigan |
| 70 | Olga Schiffer | 19 | Servant | Servant | Pennsylvania |
| 71 | Louis Mcgill | 66 | Head | — | Canada-English |
| 72 | Katherine Mcgill | 60 | Wife | — | New York |
| 73 | Roy Gordon | 14 | Roomer | — | Michigan |
| 74 | Allan Gordon | 13 | Roomer | — | Michigan |
| 75 | Ralph Gordon | 12 | Roomer | — | Michigan |
| 76 | Irine Gordon | 10 | Roomer | — | Michigan |
| 77 | Ira R. Meadows | 34 | Head | Retail Manager | Michigan |
| 78 | Anna B. Meadows | 33 | Wife | — | Michigan |
| 79 | David C. Stalley | 43 | Head | Carpenter | Ohio |
| 80 | Clara Stalley | 38 | Wife | — | Michigan |
| 81 | Charles Stalley | 19 | Son | Laborer | Michigan |
| 82 | Clark Mcnaffy | 35 | Head | Assembler | Michigan |
| 83 | Lydia Mcnaffy | 39 | Wife | — | Michigan |
| 84 | Dona Mcnaffy | 14 | Daughter | — | Michigan |
| 85 | Mabel Mcnaffy | 12 | Daughter | — | Michigan |
| 86 | David H. Stanaback | 74 | Head | — | New Jersey |
| 87 | Ella M. Stanaback | 64 | Wife | — | Michigan |
| 88 | Peter Stanaback | 42 | Son | Electrician | Michigan |
| 89 | Helmer Stanaback | 26 | Son | Repairman | Michigan |
| 90 | Roy Lewis | 22 | Head | Printer | Ohio |
| 91 | Irene Lewis | 21 | Wife | — | Indiana |
| 92 | Patricia A. Lewis | 0 | Daughter | — | Michigan |
| 93 | Harold Clark THIS PERSON | 31 | Head | Retail Merchant | Michigan |
| 94 | Dorothy A. Clark | 28 | Wife | — | Michigan |
| 95 | Helen H. Clark | 4 | Daughter | — | Michigan |
| 96 | Max Pennell | 26 | Head | Truck Driver | Michigan |
| 97 | Evelyn Pennell | 23 | Wife | — | Michigan |
| 98 | Donald Pennell | 1 | Son | — | Michigan |
| 99 | George L. Rogers | 69 | Head | — | Michigan |
| 100 | Ellen Rogers | 55 | Wife | — | Michigan |
Pedigree Summary
Harold
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)