HC
Harold Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Schenectady-County, New York
Our Model Tree links this Harold Clark across the 1920, 1930 and 1940 US Censuses in Schenectady-County, New York (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 4-person household.
Age 44
b. ~1896
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Schenectady-County, New York |
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Schenectady |
| 1935 Residence (County) | Schenectady |
| Additional Details | |
| Occupation | Accountant |
| Industry | Electrical Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Accountant |
| Township / Ward | Schenectady |
| Est. Birth Year | ~1896 |
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 |
|---|---|---|---|---|
| Harold Clark | Head | — | 44 | ~1896 |
| Elizabeth Clark | Daughter | — | 15 | ~1925 |
| Nancy Clark | Daughter | — | 12 | ~1928 |
| Persis Clark | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Schenectady, New …
Head, age 25
Schenectady, New York · implied b. ~1895 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Harold G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Accountant |
| Industry | Electric Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Schenectady, New …
Head, age 34
Schenectady, New York · implied b. ~1896 — 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 | 34 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 24 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Accountant |
| Industry | Electrical Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 8500 |
| Radio Set | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Schenectady-County, New …
Head, age 44
Schenectady-County, New York · implied b. ~1896 — 4 household members
| Surname | Clark |
| Given Name | Harold |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Schenectady |
| 1935 Residence (County) | Schenectady |
| Occupation | Accountant |
| Industry | Electrical Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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.
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This person
Anchor record
Harold Clark
Head · 1940 · age 44 · b. ~1896 · New York
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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 — Schenectady-County, New York
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1940 US Federal Census — Schenectady-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02776-00022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alfred Flynn | 46 | Head | Electrical Engineer | England |
| 2 | Caroline Flynn | 43 | Wife | — | Canada-English |
| 3 | Robert Flynn | 13 | Son | — | New York |
| 4 | Mary Flynn | 7 | Daughter | — | New York |
| 5 | Ettore Mancuso | 43 | Head | Lawyer | Italy |
| 6 | Jane Mancuso | 40 | Wife | — | New York |
| 7 | Julia Mancuso | 15 | Daughter | — | New York |
| 8 | Frances Mancuso | 14 | Daughter | — | New York |
| 9 | Ettore Jr Mancuso | 7 | Son | — | New York |
| 10 | Vernon Travers | 50 | Head | Commercial Engineer | New York |
| 11 | Marion Travers | 50 | Wife | — | Illinois |
| 12 | Lillian Travers | 21 | Daughter | — | New York |
| 13 | Egbert Bacon | 40 | Head | Chemistry Teacher | Michigan |
| 14 | Ida May Bacon | 31 | Wife | — | Michigan |
| 15 | Eleanor Bacon | 2 | Daughter | — | New York |
| 16 | L. G. Dudley | 60 | Mother-in-law | — | Ohio |
| 17 | Stanley Kelly | 33 | Head | Proprietor | New York |
| 18 | Pauline Kelly | 27 | Wife | — | New York |
| 19 | Elaine Kelly | 8 | Daughter | — | New York |
| 20 | Robert Kelly | 4 | Son | — | New York |
| 21 | Florence Wise | 57 | Head | — | New York |
| 22 | Edmund Grant | 25 | Lodger | Accountant | Vermont |
| 23 | Robert Kellogg | 26 | Lodger | Test Engineer | Connecticut |
| 24 | James Macgregor | 24 | Lodger | Electrical Engineer | New Hampshire |
| 25 | Norman Sholty | 27 | Lodger | Engineer | Colorado |
| 26 | Willard Muir | 26 | Lodger | Accountant | Colorado |
| 27 | Howard Pennock | 25 | Lodger | Payroll Clerk | New Hampshire |
| 28 | Sylvan Blake | 26 | Lodger | Mechanical Engineer | Colorado |
| 29 | Harold Clark THIS PERSON | 44 | Head | Accountant | New York |
| 30 | Persis Clark | 43 | Wife | — | New York |
| 31 | Elizabeth Clark | 15 | Daughter | — | New York |
| 32 | Nancy Clark | 12 | Daughter | — | New York |
| 33 | Charles Marvin | 48 | Head | Certified Public Accountant | California |
| 34 | Elizabeth Marvin | 46 | Wife | — | Pennsylvania |
| 35 | Betty Rose Marvin | 15 | Daughter | — | New York |
| 36 | J. Rose Marvin | 11 | Daughter | — | New York |
| 37 | George H Snyder | 44 | Head | English Teacher | Vermont |
| 38 | Marion Snyder | 35 | Wife | — | New York |
| 39 | Robert Snyder | 14 | Son | — | New York |
| 40 | Eleanor Snyder | 11 | Daughter | — | New York |
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)