HC
Henry Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Merrimack-County, New Hampshire
Our Model Tree links this Henry Clark across the 1920, 1930 and 1940 US Censuses in Merrimack-County, New Hampshire (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 4-person household.
Age 56
b. ~1884
Male
Head
Born: New Hampshire
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Merrimack-County, New Hampshire |
| Surname | Clark |
| Given Name | Henry G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Pittsfield |
| 1935 Residence (County) | Merrimack |
| Additional Details | |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Hours Worked | 20 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Farmer |
| Township / Ward | Pittsfield |
| Est. Birth Year | ~1884 |
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 Henry | Age | Birth yr |
|---|---|---|---|---|
| Henry Clark | Head | — | 56 | ~1884 |
| Barbara Clark | Other | — | 3 | ~1937 |
| Eleanor Clark | Other | — | 25 | ~1915 |
| Henry Clark | Son | — | 27 | ~1913 |
Census Appearances
1920
Merrimack, New …
Head, age 35
Merrimack, New Hampshire · implied b. ~1885 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Henry G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Canada |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Em |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Merrimack, New …
Head, age 46
Merrimack, New Hampshire · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Henry G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Age at First Marriage | 21 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Occupation | Farming |
| Industry | General Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2000 |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Merrimack-County, New …
Head, age 56
Merrimack-County, New Hampshire · implied b. ~1884 — 4 household members
| Surname | Clark |
| Given Name | Henry G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Widowed |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Pittsfield |
| 1935 Residence (County) | Merrimack |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Hours Worked | 20 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 Henry 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
Henry Clark
Head · 1940 · age 56 · b. ~1884 · New Hampshire
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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 — Merrimack-County, New Hampshire
Open full size
1940 US Federal Census — Merrimack-County, New Hampshire
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02294-00754)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Eva G. Clark | 48 | Wife | Housekeeper | Canada French |
| 42 | Bertha N. Clark | 17 | Daughter | Polishing Top | New Hampshire |
| 43 | Florence M. Clark | 13 | Daughter | — | New Hampshire |
| 44 | Eleanor E. Clark | 10 | Daughter | — | New Hampshire |
| 45 | Norma H. Clark | 8 | Daughter | — | New Hampshire |
| 46 | Nancy F. Clark | 5 | Daughter | — | New Hampshire |
| 47 | Marius K. Locke | 67 | Head | Poultryman | New Hampshire |
| 48 | Willie C. Hurd | 63 | Head | Clerk | Massachusetts |
| 49 | Grace W. Hurd | 59 | Wife | — | New Hampshire |
| 50 | Arthur E. Hurd | 22 | Son | Farm Help | Massachusetts |
| 51 | Martha G. Ames | 62 | Head | Rug Hooker | New Hampshire |
| 52 | Elizabeth L. Peaslee | 46 | Head | — | New Hampshire |
| 53 | Francis A. Peaslee | 48 | Head | Poultryman | New Hampshire |
| 54 | Elizabeth J. Peaslee | 51 | Wife | — | New Hampshire |
| 55 | Esther M. Peaslee | 19 | Daughter | — | New Hampshire |
| 56 | Dorothy E. Peaslee | 15 | Daughter | — | New Hampshire |
| 57 | John S. Buffum | 56 | Head | Clergyman | New Hampshire |
| 58 | Olive M. Buffum | 54 | Wife | Reg. Nurse | New Hampshire |
| 59 | Harold O. Locke | 33 | Head | Teamster | New Hampshire |
| 60 | Florence M. Locke | 33 | Wife | — | New Hampshire |
| 61 | Betty Louise Locke | 8 | Daughter | — | New Hampshire |
| 62 | Robert Sterling Locke | 3 | Son | — | New Hampshire |
| 63 | Jean Gertrude Locke | 1 | Daughter | — | New Hampshire |
| 64 | Foster C. Campbell | 46 | Head | Farm Hand | Vermont |
| 65 | Minnie E. Campbell | 82 | Mother | — | Vermont |
| 66 | Margaret Ernest Campbell | 63 | H. Sister | Proof Reader | Vermont |
| 67 | S. Everett Clark | 35 | Head | Poultryman | New Hampshire |
| 68 | Dorothy R. Clark | 33 | Wife | — | Massachusetts |
| 69 | Richard E. Clark | 9 | Son | — | New Hampshire |
| 70 | Janet E. Clark | 4 | Daughter | — | New Hampshire |
| 71 | Carolyn M. Clark | 3 | Daughter | — | New Hampshire |
| 72 | Betty E. Clark | 1 | Daughter | — | New Hampshire |
| 73 | Earnest S. D. Greene | 61 | Head | Poultryman | New Hampshire |
| 74 | Addie E. Greene | 54 | Wife | — | New Hampshire |
| 75 | Leona G. Greene | 33 | Daughter | School Teacher | New Hampshire |
| 76 | Henry G. Clark THIS PERSON | 56 | Head | Farmer | New Hampshire |
| 77 | Henry A. Clark | 27 | Son | Farmer | New Hampshire |
| 78 | Eleanor L. Clark | 25 | Daughter-in-law | — | New Hampshire |
| 79 | Barbara L. Clark | 3 | Granddaughter | — | New Hampshire |
| 80 | Edward H. Le Duc | 34 | Head | Shoe Factor | New Hampshire |
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)