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John Callahan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Orleans-County, Vermont
Our Model Tree links this John Callahan across the 1920, 1930 and 1940 US Censuses in Orleans-County, Vermont (XGBoost, ~Confirmed) — first a head (b.~1899), then head of a 4-person household.
Age 41
b. ~1899
Male
Head
Born: New Hampshire
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Orleans-County, Vermont |
| Surname | Callahan |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Essex |
| Additional Details | |
| Occupation | Inspector |
| Industry | Customs |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 49 |
| Highest Grade | Hs 4 |
| 1935 Residence | Vermont |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Inspector |
| Township / Ward | Newport |
| Est. Birth Year | ~1899 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Elaine Callahan | Daughter | — | 16 | ~1924 |
| John Callahan | Head | — | 41 | ~1899 |
| Duane Callahan | Son | — | 15 | ~1925 |
| Annie Callahan | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Essex, Vermont
Other, age 21
Essex, Vermont · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | John L. |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | New Hampshire |
| Occupation | Clerk |
| Industry | Railway |
| 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
Essex, Vermont
Head, age 31
Essex, Vermont · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| Age at First Marriage | 22 |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Vermont |
| Occupation | Inspector |
| Industry | U.S. Customs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 16 |
| Radio Set | R |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Orleans-County, Vermont
Head, age 41
Orleans-County, Vermont · implied b. ~1899 — 4 household members
| Surname | Callahan |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | New Hampshire |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Essex |
| Occupation | Inspector |
| Industry | Customs |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 49 |
| Highest Grade | Hs 4 |
| 1935 Residence | Vermont |
| 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 Callahan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Callahan
Head · 1940 · age 41 · b. ~1899 · Vermont
★ 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 — Orleans-County, Vermont
Open full size
1940 US Federal Census — Orleans-County, Vermont
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04234-00452)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fay J. Hancock | 6 | Daughter | — | Vermont |
| 42 | Michael Mcguire | 55 | Father-in-law | Fireman | England |
| 43 | Arthur Graham | 50 | Head | Inspector | Vermont |
| 44 | Mabel Graham | 50 | Wife | — | Vermont |
| 45 | Raymond Parker | 38 | Head | Insurance Agent | Vermont |
| 46 | Clarence Parker | 11 | Son | — | Vermont |
| 47 | Dorothy B. Stevens | 21 | Servant | Servant | Vermont |
| 48 | Frederick A. Wheeler | 53 | Head | Fireman | Vermont |
| 49 | Lila M. Wheeler | 43 | Wife | — | Vermont |
| 50 | Irwin Wheeler | 18 | Son | — | Vermont |
| 51 | Lorraine Wheeler | 14 | Daughter | — | Vermont |
| 52 | Elma Wheeler | 11 | Daughter | — | Vermont |
| 53 | William Jr. Wheeler | 10 | Son | — | Vermont |
| 54 | Ralph Wheeler | 5 | Son | — | Vermont |
| 55 | John Wheeler | 2 | Son | — | Vermont |
| 56 | William Davis | 78 | Father-in-law | — | Vermont |
| 57 | Gordon Larkin | 63 | Head | Laborer | Vermont |
| 58 | Albert Larkin | 40 | Son | W.P.A. Worker | Vermont |
| 59 | Clayton Larkin | 27 | Son | Laborer | Vermont |
| 60 | Gordon Jr. Larkin | 24 | Son | — | Vermont |
| 61 | Addison Larkin | 65 | Brother | — | Vermont |
| 62 | Eugene J. Clifford | 62 | Head | Woodworker | Canada |
| 63 | Susan H. Clifford | 66 | Wife | — | England |
| 64 | Isaac L. B. Brought | 60 | Head | — | Vermont |
| 65 | Barbara A. Brought | 23 | Daughter | — | Vermont |
| 66 | Ellen C. Brought | 31 | Sister | Inspector | Canada |
| 67 | Malcolm J. Brought | 5 | Grandson | — | Vermont |
| 68 | John W. Tofman | 55 | Head | Salesman | Canada |
| 69 | Alma Tofman | 53 | Wife | — | England |
| 70 | Ralph R. Tofman | 23 | Son | — | Vermont |
| 71 | Robert J. Tofman | 12 | Son | — | Vermont |
| 72 | John L. Callahan THIS PERSON | 41 | Head | Inspector | New Hampshire |
| 73 | Annie Callahan | 39 | Wife | — | Vermont |
| 74 | Duane Callahan | 15 | Son | — | New Hampshire |
| 75 | Elaine Callahan | 16 | Daughter | — | Vermont |
| 76 | George Dyman | 60 | Head | Brakeman | Vermont |
| 77 | Julia Dyman | 67 | Wife | — | New York |
| 78 | Napoleon E. Bedard | 78 | Lodger | — | Canada |
| 79 | Elva Barnard | 39 | Head | Operator | Vermont |
| 80 | Pauline Barnard | 9 | Daughter | — | 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)