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Lois Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rockingham-County, New Hampshire
Our Model Tree links this Lois Clark across the 1920, 1930 and 1940 US Censuses in Rockingham-County, New Hampshire (XGBoost, ~Confirmed) — first a spouse (b.~1895), then head of a 6-person household.
Age 45
b. ~1895
Female
Spouse
Born: New Hampshire
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Rockingham-County, New Hampshire |
| Surname | Clark |
| Given Name | Lois |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Derry |
| 1935 Residence (County) | Rockingham |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Shoe Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1100 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Bookkeeper |
| Township / Ward | Derry |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lois | Age | Birth yr |
|---|---|---|---|---|
| Mabel Pike | Other | — | 65 | ~1875 |
| Lois Clark | Spouse | — | 45 | ~1895 |
| Marjorie Ross | Daughter | — | 21 | ~1919 |
| Clayton Ross | Other | — | 25 | ~1915 |
| Lura Clark | Other | — | 70 | ~1870 |
| Forest Clark | Head | — | 49 | ~1891 |
Census Appearances
1920
Rockingham, New …
Spouse, age 25
Rockingham, New Hampshire · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Lois H. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Rockingham, New …
Other, age 34
Rockingham, New Hampshire · implied b. ~1896 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Lois H |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Age at First Marriage | 18 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Occupation | Book keeper |
| Industry | Shoe factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Rockingham-County, New …
Spouse, age 45
Rockingham-County, New Hampshire · implied b. ~1895 — 6 household members
| Surname | Clark |
| Given Name | Lois |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Derry |
| 1935 Residence (County) | Rockingham |
| Occupation | Bookkeeper |
| Industry | Shoe Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1100 |
| Highest Grade | Hs 4 |
| 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 Lois 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
Lois Clark
Spouse · 1940 · age 45 · b. ~1895 · 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 — Rockingham-County, New Hampshire
Open full size
1940 US Federal Census — Rockingham-County, New Hampshire
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02295-00180)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Pillsbury | 10 | Head | — | New Hampshire |
| 2 | Walter Pillsbury | 34 | Son | Ledger | New Hampshire |
| 3 | Ruth D. Pillsbury | 31 | Wife | — | New Hampshire |
| 4 | Paul Pillsbury | 5 | Son | — | New Hampshire |
| 5 | Fanny O. Smith | 75 | Head | — | New Hampshire |
| 6 | Norman Chapman | 35 | Head | Route Examiner | Canada-English |
| 7 | Frances O. Chapman | 33 | Wife | — | Massachusetts |
| 8 | Pois M. Chapman | 5 | Daughter | — | New Hampshire |
| 9 | Benjamin Low | 67 | Head | Proprietor | New Hampshire |
| 10 | Harriett Low | 67 | Wife | — | New Hampshire |
| 11 | Forest D. Clark | 49 | Head | Chef | New Hampshire |
| 12 | Lois Clark THIS PERSON | 45 | Wife | Bookkeeper | New Hampshire |
| 13 | Clayton Ross | 25 | Son-in-law | Truck Driver | New Hampshire |
| 14 | Marjorie Ross | 21 | Daughter | — | New Hampshire |
| 15 | Lura Clark | 70 | Mother | — | New Hampshire |
| 16 | Mabel Pike | 65 | Housekeeper | Housekeeper | New Hampshire |
| 17 | Henry Therriault | 30 | Head | Wood Heeler | New Hampshire |
| 18 | Agnes Therriault | 30 | Wife | — | New Hampshire |
| 19 | Henry Jr. Therriault | 9 | Son | — | New Hampshire |
| 20 | Robert Therriault | 6 | Son | — | New Hampshire |
| 21 | Theodore Therriault | 4 | Son | — | New Hampshire |
| 22 | Alonzo Huntoon | 59 | Head | Laborer | New Hampshire |
| 23 | Adeline Huntoon | 58 | Wife | — | New Hampshire |
| 24 | Louis Packer | 69 | Lodger | Proprietor | New Hampshire |
| 25 | R. Kese Goldie | 32 | Head | Truck Driver | New Hampshire |
| 26 | Alice Goldie | 37 | Wife | — | New Hampshire |
| 27 | Samuel J. Tewksbury | 70 | Father-in-law | — | Maryland |
| 28 | William J. Wilson | 32 | Head | Medical Doctor | Illinois |
| 29 | Barbara S. Wilson | 29 | Wife | — | New Hampshire |
| 30 | William J. 3Rd Wilson | 4 | Son | — | New Hampshire |
| 31 | Robert C. Wilson | 1 | Son | — | New Hampshire |
| 32 | Harry W. Mark | 44 | Head | Service Man | Ohio |
| 33 | Carleton A. Mark | 42 | Brother | 4 | New Hampshire |
| 34 | Florence M. Eaton | 39 | Sister | Cook | New Hampshire |
| 35 | Gladys Eaton | 12 | Neice | — | Massachusetts |
| 36 | Anna Dawn Eaton | 9 | Neice | — | New Hampshire |
| 37 | Alfred J. Robitaille | 72 | Head | — | New Hampshire |
| 38 | William S. Gilman | 74 | Lodger | — | New Hampshire |
| 39 | William O. Shaw | 69 | Head | — | Vermont |
| 40 | Ethel J. Shaw | 55 | Wife | — | Vermont |
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)