JA
John Adams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Merrimack-County, New Hampshire
Our Model Tree links this John Adams across the 1920, 1930 and 1940 US Censuses in Merrimack-County, New Hampshire (XGBoost, ~Confirmed), with identified parents Charles & Nellie — first a head (b.~1903), then head of a 8-person household.
Age 37
b. ~1903
Male
Head
Born: New Hampshire
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Merrimack-County, New Hampshire |
| Surname | Adams |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Pembroke Town |
| 1935 Residence (County) | Merrimack |
| Additional Details | |
| Occupation | farm laborer |
| Industry | own farm |
| Class of Worker | OA |
| Hours Worked | 66 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Farm Laborer |
| Township / Ward | Pembroke Town |
| Est. Birth Year | ~1903 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Adams | Daughter | — | 13 | ~1927 |
| Eleanor Adams | Daughter | — | 12 | ~1928 |
| Nancy Adams | Daughter | — | 6 | ~1934 |
| John Adams | Head | — | 37 | ~1903 |
| Nellie Adams | Other | — | 76 | ~1864 |
| Archie Lamprey | Other | — | 23 | ~1917 |
| Nat Adams | Son | — | 9 | ~1931 |
| Lillian Adams | Spouse | — | 38 | ~1902 |
Census Appearances
1920
Merrimack, New …
Son, age 17
Merrimack, New Hampshire · implied b. ~1903 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Occupation | Laborer |
| Industry | Gen. Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1930
Merrimack, New …
Head, age 27
Merrimack, New Hampshire · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Age at First Marriage | 21 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 12000 |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Merrimack-County, New …
Head, age 37
Merrimack-County, New Hampshire · implied b. ~1903 — 8 household members
| Surname | Adams |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Pembroke Town |
| 1935 Residence (County) | Merrimack |
| Occupation | farm laborer |
| Industry | own farm |
| Class of Worker | OA |
| Hours Worked | 66 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 John Adams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Adams (~0.92 confidence) and mother Nellie Adams (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Adams
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Nellie Adams
b. ~1864
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Adams
Head · 1940 · age 37 · b. ~1903 · New Hampshire
★ 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 — 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-t0627-02294-00728)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Percy E. Mackenzie | 49 | Head | Owner Manager | Canada English |
| 2 | Bernice T. Mackenzie | 47 | Wife | — | Canada English |
| 3 | Eugene R. Mackenzie | 23 | Son | — | Canada English |
| 4 | Gordon D. Mackenzie | 20 | Son | — | Canada English |
| 5 | Joseph Hummer | 49 | Head | Caretaker | New York |
| 6 | Theresa Hummer | 52 | Wife | — | Sweden |
| 7 | George Hummer | 20 | Son | Clerk | Vermont |
| 8 | Helen W. Bolton | 63 | Head | — | Vermont |
| 9 | Dorothy A. Bolton | 18 | daughter | — | New Hampshire |
| 10 | Arsene A. Charpentier | 39 | Head | Grower | New Hampshire |
| 11 | Bernice D. Charpentier | 33 | wife | — | Mass. |
| 12 | Marjorie L. Charpentier | 4 | daughter | — | N. Hamp. |
| 13 | Joyce B. Charpentier | 0 | infant | — | N. Hamp. |
| 14 | Omar J. Charpentier | 34 | Head | Waiter | N. Hamp. |
| 15 | Ethel B. Charpentier | 31 | wife | — | R. Island |
| 16 | Jeannette A. Charpentier | 10 | daughter | — | Mass. |
| 17 | Shirley A. Charpentier | 1 | daughter | — | N. Hamp. |
| 18 | Hartwell L. Atwood | 44 | Head | Bus Driver | Mass. |
| 19 | Blanche D. Atwood | 41 | wife | — | Mass. |
| 20 | Irving L. Atwood | 18 | son | Clerk | Mass. |
| 21 | Edward R. Atwood | 15 | son | — | Mass. |
| 22 | David P. Strom | 49 | Head | Carpenter | Sweden |
| 23 | Edith E. Strom | 55 | sister | — | Sweden |
| 24 | Jacob A. Chase | 34 | Head | Garage Proprietor | New Hampshire |
| 25 | Grace C. Chase | 31 | wife | — | Massachusetts |
| 26 | Richard S. Chase | 5 | son | — | New Hampshire |
| 27 | Clara A. Strand | 74 | head | Manager | N. Hamp. |
| 28 | Lizzie F. Wallace | 75 | partner | Manager | N. Hamp. |
| 29 | Elms C. Wallace | 49 | son | Farm Laborer | Mass. |
| 30 | Alpha Richards | 36 | hired man | Cattle Foreman | N. Hamp. |
| 31 | Ulyce Gendron | 21 | hired man | Milk Foreman | Canada French |
| 32 | Carrie Young | 35 | housekeeper | Housekeeper | N. Hamp. |
| 33 | John Adams THIS PERSON | 37 | Head | Farm Laborer | New Hampshire |
| 34 | Lillian C. Adams | 38 | wife | — | New Hampshire |
| 35 | Dorothy E. Adams | 13 | daughter | — | New Hampshire |
| 36 | Eleanor R. Adams | 12 | daughter | — | New Hampshire |
| 37 | Nat C. Adams | 9 | son | — | New Hampshire |
| 38 | Nancy O. Adams | 6 | daughter | — | New Hampshire |
| 39 | Nellie C. Adams | 76 | mother | — | New Hampshire |
| 40 | Archie Lamprey | 23 | hired man | Farm Laborer | New Hampshire |
Pedigree Summary
John
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 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)