JH
John Harper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tompkins-County, New York
Our Model Tree links this John Harper across the 1920, 1930 and 1940 US Censuses in Tompkins-County, New York (XGBoost, ~Confirmed), with identified parents Merritt & Elizabeth — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tompkins-County, New York |
| Surname | Harper |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Ithaca city |
| 1935 Residence (County) | Tompkins |
| Additional Details | |
| Highest Grade | C 5 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Ithaca City |
| Est. Birth Year | ~1918 |
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 |
|---|---|---|---|---|
| Elizabeth Harper | Head | — | 54 | ~1886 |
| James Harper | Son | — | 27 | ~1913 |
| George Harper | Son | — | 20 | ~1920 |
| John Harper | Son | — | 22 | ~1918 |
Census Appearances
1920
Tompkins, New …
Son, age 2
Tompkins, New York · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ohio |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Tompkins, New …
Son, age 12
Tompkins, New York · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | John T |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ohio |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Tompkins-County, New …
Son, age 22
Tompkins-County, New York · implied b. ~1918 — 4 household members
| Surname | Harper |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Ithaca city |
| 1935 Residence (County) | Tompkins |
| Highest Grade | C 5 |
| 1935 Residence | Same house |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Harper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Merritt Harper (~0.92 confidence) and mother Elizabeth Harper (~0.92 confidence) and mother Elizabeth Harper (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Merritt Harper
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Harper
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Harper
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Harper
Son · 1940 · age 22 · b. ~1918 · New York
★ You are viewing this record
Sibling
George Harper
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Harper
Sibling · 1940 · age 27
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 — Tompkins-County, New York
Open full size
1940 US Federal Census — Tompkins-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02793-00121)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Russell Brayton Eaton | 26 | Partner | Teacher | Maine |
| 2 | A. Noble Petrie | 24 | Head | Instructor | New York |
| 3 | Cynthia K. Petrie | 23 | Wife | — | New York |
| 4 | Maurice C. Avery | 50 | Head | Specialist | New Hampshire |
| 5 | Emma O. Avery | 40 | Wife | — | New York |
| 6 | Jeannette G. Avery | 19 | Daughter | — | New York |
| 7 | Daniel G. Avery | 15 | Son | — | New York |
| 8 | Richard S. Avery | 12 | Son | — | New York |
| 9 | Donald W. Andrus | 25 | Head | Teacher | Connecticut |
| 10 | C. M. Vanderwaart | 25 | Partner | Teacher | Connecticut |
| 11 | D. L. Stockton | 23 | Partner | Teacher | Arkansas |
| 12 | Martin J. Barnett | 25 | Partner | Teacher | Mississippi |
| 13 | Joseph S. Nye | 55 | Head | Professor | Idaho |
| 14 | Dorothy C. Nye | 47 | Wife | — | Utah |
| 15 | J. Gordon Nye | 21 | Son | Civil Engineer | New York |
| 16 | Howard S. Nye | 20 | Son | — | Idaho |
| 17 | H. Wesley Nye | 17 | Son | — | Idaho |
| 18 | Dorothy E. Nye | 13 | Daughter | — | New York |
| 19 | Richard W. Nye | 9 | Son | — | New York |
| 20 | Frank D. W. Curtiss | 34 | Lodger | Teacher | Pennsylvania |
| 21 | Thomas B. Simpson | 26 | Head | Instructor | Alabama |
| 22 | Carolyn E. Simpson | 30 | Wife | — | Mississippi |
| 23 | Lee Gook-Leang | 23 | Lodger | — | China |
| 24 | Jessie B. Deming | 45 | Head | Confidential Clerk | New York |
| 25 | Harold B. Deming | 20 | Son | Clerk | New York |
| 26 | Jack B. Deming | 18 | Son | Painter | New York |
| 27 | W. W. Middaugh | 30 | Head | Assistant Professor | Nebraska |
| 28 | Helen Middaugh | 29 | Wife | — | Illinois |
| 29 | Gerald F. Tape | 24 | Head | Instructor | Michigan |
| 30 | Josephine Tape | 25 | Wife | — | Michigan |
| 31 | Lou M. Cogan | 36 | Head | Merchandise Manager | Russia |
| 32 | Celia M. Cogan | 33 | Wife | — | New York |
| 33 | Howard S. Cogan | 10 | Son | — | Pennsylvania |
| 34 | Stewart C. Cogan | 7 | Son | — | Pennsylvania |
| 35 | Elizabeth M. W. Harper | 54 | Head | — | New York |
| 36 | James T. Harper | 27 | Son | Instructor | New York |
| 37 | John T. Harper THIS PERSON | 22 | Son | — | New York |
| 38 | George T. Harper | 20 | Son | — | New York |
| 39 | Arthur A. Cross | 42 | Head | Dentist | New York |
| 40 | Margaret Cross | 39 | Wife | — | New York |
Pedigree Summary
John + 2 siblings
Gen 1 · 3 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)