HC
Harold Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tompkins-County, New York
Our Model Tree links this Harold Clark across the 1920, 1930 and 1940 US Censuses in Tompkins-County, New York (XGBoost, ~Confirmed), with identified parents Maude — first a head (b.~1906), then head of a 7-person household.
Age 34
b. ~1906
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Tompkins-County, New York |
| Surname | Clark |
| Given Name | Harold G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Ithaca |
| 1935 Residence (County) | Tompkins |
| Additional Details | |
| Occupation | Machinist |
| Industry | Sporting Gun Factory |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Machinist |
| Township / Ward | Groton Village |
| Est. Birth Year | ~1906 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harold | Age | Birth yr |
|---|---|---|---|---|
| George Clark | Son | — | 7 | ~1933 |
| Harold Clark | Head | — | 34 | ~1906 |
| Raymond Clark | Son | — | 1 | ~1939 |
| Helen Clark | Daughter | — | 12 | ~1928 |
| Mary Clark | Spouse | — | 34 | ~1906 |
| Richard Clark | Son | — | 5 | ~1935 |
| Mary Clark | Daughter | — | 2 | ~1938 |
Census Appearances
1920
Tompkins, New …
Son, age 13
Tompkins, New York · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harold F |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Tompkins, New …
Head, age 24
Tompkins, New York · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 24 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Radio Set | R |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Tompkins-County, New …
Head, age 34
Tompkins-County, New York · implied b. ~1906 — 7 household members
| Surname | Clark |
| Given Name | Harold G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Ithaca |
| 1935 Residence (County) | Tompkins |
| Occupation | Machinist |
| Industry | Sporting Gun Factory |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 750 |
| Highest Grade | H-4 |
| 1935 Residence | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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: mother Maude Clark (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Maude Clark
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harold Clark
Head · 1940 · age 34 · b. ~1906 · New York
★ 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 — Tompkins-County, New York
Open full size
1940 US Federal Census — Tompkins-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02792-00279)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harold G. Clark THIS PERSON | 34 | Head | Machinist | New York |
| 42 | Mary E. Clark | 34 | Wife | — | New York |
| 43 | Helen M. Clark | 12 | Daughter | — | New York |
| 44 | George H. Clark | 7 | Son | — | New York |
| 45 | Richard G. Clark | 5 | Son | — | New York |
| 46 | Mary J. Clark | 2 | Daughter | — | New York |
| 47 | Raymond L. Clark | 1 | Son | — | New York |
| 48 | Martin J. Decker | 51 | Head | Aligner | New York |
| 49 | Mary H. Decker | 51 | Wife | — | New York |
| 50 | Frederick M. Decker | 24 | Son | Stock Clerk | New York |
| 51 | Josephine Johnson | 71 | Head | — | New York |
| 52 | Mary B. Cartwright | 10 | Ward | — | New York |
| 53 | Alta M. Hurst | 52 | Head | Housekeeper | Pennsylvania |
| 54 | Maie E. Fish | 57 | Head | House Work | New York |
| 55 | Fred Long | 47 | Head | Aligner | New York |
| 56 | Mary R. Long | 47 | Wife | — | New York |
| 57 | Alma G. Long | 22 | Daughter | Parts Inspector | New York |
| 58 | Elizabeth A. Long | 19 | Daughter | Sub-Assembler | New York |
| 59 | Rachael A. Wright | 75 | Mother-in-law | — | New York |
| 60 | Lawrence C. Siel | 30 | Head | Auto Body Repair Man | New York |
| 61 | Mary C. Siel | 27 | Wife | Assembler | New York |
| 62 | Delia Siel | 59 | Mother | — | New York |
| 63 | Harry S. Moon | 53 | Head | Finisher | New York |
| 64 | Rose M. Moon | 51 | Wife | — | New York |
| 65 | William D. Knicker | 58 | Lodger | Laborer | New York |
| 66 | Alvin F. Hart | 37 | Lodger | Aligner | New York |
| 67 | Alexander Robur | 27 | Head | Punch Press | New York |
| 68 | Norma R. Robur | 23 | Wife | Punch Assembler | New York |
| 69 | James R. Robur | 4 | Son | — | New York |
| 70 | John G. Robur | 2 | Son | — | New York |
| 71 | Clifford W. Van Marter | 39 | Head | Road Machine Operator | New York |
| 72 | Myrtle M. Van Marter | 37 | Wife | — | New York |
| 73 | Barbara Van Marter | 14 | Daughter | — | New York |
| 74 | Sadie E. Van Marter | 1 | Daughter | — | New York |
| 75 | Robert R. Sharpe | 33 | Head | Stock Clerk | New York |
| 76 | Lena A. Sharpe | 29 | Wife | Assembler | New York |
| 77 | Emma L. Hall | 38 | Head | Stock Clerk | New York |
| 78 | Marie E. Hall | 16 | Daughter | House Work | New York |
| 79 | Pauline J. Hall | 13 | Daughter | — | New York |
| 80 | Walter E. Beams | 26 | Head | Creamery Laborer | Vermont |
Pedigree Summary
Harold
Gen 1 · 1 parents
~0.92
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)