JW
John Warren — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rockingham-County, New Hampshire
Our Model Tree links this John Warren across the 1900, 1910, 1920, 1930 and 1940 US Censuses in Rockingham-County, New Hampshire (XGBoost, ~Confirmed), with identified parents Sarah & Sarah — first a son (b.~1897), then head of a 5-person household.
Age 43
b. ~1897
Male
Son
Born: New Hampshire
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rockingham-County, New Hampshire |
| Surname | Warren |
| Given Name | John H. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Epping |
| 1935 Residence (County) | Rockingham |
| Additional Details | |
| Occupation | Farmer |
| Industry | own operator |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Farmer |
| Township / Ward | Epping |
| Est. Birth Year | ~1897 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Beatrice Warren | Daughter | — | 51 | ~1889 |
| John Warren | Head | — | 76 | ~1864 |
| David Rich | Other | — | 50 | ~1890 |
| John Warren | Son | — | 43 | ~1897 |
| Sarah Warren | Spouse | — | 78 | ~1862 |
Census Appearances
1900
Rockingham, New …
Son, age 3
Rockingham, New Hampshire · implied b. ~1897 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Birth Month | Sept |
| Birth Year | 1897 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1910
Rockingham, New …
Son, age 12
Rockingham, New Hampshire · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1920
Rockingham, New …
Son, age 23
Rockingham, New Hampshire · implied b. ~1897 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Ireland |
| Occupation | Farm Laborer |
| Industry | General 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
Rockingham, New …
Son, age 32
Rockingham, New Hampshire · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Northern Ireland |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Rockingham-County, New …
Son, age 43
Rockingham-County, New Hampshire · implied b. ~1897 — 5 household members
| Surname | Warren |
| Given Name | John H. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Epping |
| 1935 Residence (County) | Rockingham |
| Occupation | Farmer |
| Industry | own operator |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 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 Warren across 5 US Census years (1900, 1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Sarah Warren (~0.92 confidence) and mother Sarah Warren (~0.92 confidence) and father John Warren (~0.92 confidence) and father John Warren (~0.92 confidence) and father John Warren (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Sarah Warren
b. ~1862
Source mother
● Household
· direct · ~0.92
Mother
Sarah Warren
b. ~1863
Source mother
● Household
· direct · ~0.92
Father
John Warren
b. ~1864
Source father
● Household
· direct · ~0.92
Father
John Warren
b. ~1864
Source father
● Household
· direct · ~0.92
Father
John Warren
b. ~1875
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Warren
Son · 1940 · age 43 · b. ~1897 · New Hampshire
★ You are viewing this record
Sibling
Beatrice Warren
Sibling · 1940 · age 51
Source co-child of head (derived)
● Co-child · derived · ~0.88
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
31 people indexed on this census page (nara:1940:m-t0627-02295-00342)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anthony Nett | 15 | son | — | Massachusetts |
| 42 | Marmonie | Marmone Nett | 13 | son | — | Massachusetts |
| 43 | Mary Nett | 12 | daughter | — | Massachusetts |
| 44 | Angelina Nett | 10 | daughter | — | Massachusetts |
| 45 | Francis Nett | 2 | son | — | Massachusetts |
| 46 | Joseph Nett | 3 | son | — | Massachusetts |
| 47 | Fred L. Coffin | 50 | Head | Truck Driver | New Hampshire |
| 48 | Rosa M. Coffin | 48 | wife | — | Massachusetts |
| 49 | Charles M. Coffin | 26 | son | New Worker | Massachusetts |
| 50 | Ruth M. Coffin | 20 | daughter | — | New Hampshire |
| 51 | Fred L. Coffin | 17 | son | — | New Hampshire |
| 52 | Fred W. Sawyer | 69 | Head | — | New Hampshire |
| 53 | Amelia M. Sawyer | 66 | wife | — | Canada-French |
| 54 | George W. Simonds | 66 | Head | General Contractor | Massachusetts |
| 55 | Catherine Simonds | 69 | wife | — | Canada-French |
| 56 | Roy H. Chisholm | 36 | Head | Carpenter | New Hampshire |
| 57 | Violet Chisholm | 30 | wife | — | New Hampshire |
| 58 | Mary Chisholm | 7 | daughter | — | New Hampshire |
| 59 | Roy Jr. Chisholm | 1 | son | — | New Hampshire |
| 60 | Richard Chisholm | 0 | son | — | New Hampshire |
| 61 | John Q. Warren | 76 | Head | Farmer | New Hampshire |
| 62 | Sarah Warren | 78 | wife | — | Northern Ireland |
| 63 | John H. Warren THIS PERSON | 43 | son | Farmer | New Hampshire |
| 64 | Beatrice Warren | 51 | daughter | — | New Hampshire |
| 65 | David C. Rich | 50 | Hired help | Farm Hand | England |
| 66 | Arthur Quill | 34 | Head | Electrician | New Hampshire |
| 67 | Nellie Quill | 32 | wife | — | New Hampshire |
| 68 | Arthur Jr. Quill | 12 | son | — | New Hampshire |
| 69 | Richard Quill | 8 | son | — | New Hampshire |
| 70 | Karen Quill | 6 | daughter | — | New Hampshire |
| 71 | George W. Robbins | 70 | Head | Shoemaker | Maine |
Related Census Records
Pedigree Summary
John + 1 sibling
Gen 1 · 5 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)