WH
William Harper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Westchester-County, New York
Our Model Tree links this William Harper across the 1920, 1930 and 1940 US Censuses in Westchester-County, New York (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Westchester-County, New York |
| Surname | Harper |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Mt Vernon |
| 1935 Residence (County) | Westchester |
| Additional Details | |
| Occupation | Clerk |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 2200 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Clerk |
| Township / Ward | Mt Vernon |
| Est. Birth Year | ~1914 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Harper | Head | — | 63 | ~1877 |
| William Harper | Son | — | 26 | ~1914 |
| Sadie Harper | Spouse | — | 61 | ~1879 |
Census Appearances
1920
Westchester, New …
Son, age 6
Westchester, New York · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | William J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Westchester, New …
Son, age 16
Westchester, New York · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Westchester-County, New …
Son, age 26
Westchester-County, New York · implied b. ~1914 — 3 household members
| Surname | Harper |
| Given Name | William Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Mt Vernon |
| 1935 Residence (County) | Westchester |
| Occupation | Clerk |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 2200 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| 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 William Harper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Harper (~0.92 confidence) and father William Harper (~0.92 confidence) and father J Harper (~0.92 confidence) and mother Sadie Harper (~0.92 confidence) and mother Sadie Harper (~0.92 confidence) and mother J Harper (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Harper
b. ~1877
Source father
● Household
· direct · ~0.92
Father
William Harper
b. ~1877
Source father
● Household
· direct · ~0.92
Father
J Harper
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Sadie Harper
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Sadie Harper
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
J Harper
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Harper
Son · 1940 · age 26 · b. ~1914 · New York
★ 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 — Westchester-County, New York
Open full size
1940 US Federal Census — Westchester-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02808-00151)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Milton Henderson | 39 | Head | Credit Man | New York |
| 2 | Adeline Henderson | 40 | Wife | — | New York |
| 3 | Doris Henderson | 12 | Daughter | — | New York |
| 4 | Neil Henderson | 8 | Son | — | New York |
| 5 | Albert Millson | 51 | Head | Electrician | New York |
| 6 | Helen Millson | 50 | Wife | — | New York |
| 7 | Albert Jr Millson | 23 | Son | Clerk | New York |
| 8 | Robert Millson | 21 | Son | Clerk | New York |
| 9 | Ruth Millson | 15 | Daughter | — | New York |
| 10 | Dora C Millson | 74 | Mother | — | Germany |
| 11 | Charles Virenberg | 47 | Head | Manager | New York |
| 12 | Lena Virenberg | 45 | Wife | — | New York |
| 13 | Sallie Virenberg | 18 | Daughter | — | New York |
| 14 | Richard Virenberg | 16 | Son | — | Massachusetts |
| 15 | Sheila Virenberg | 11 | Daughter | — | New York |
| 16 | William Gordon | 50 | Head | Fireman | New York |
| 17 | Margaret Gordon | 49 | Wife | — | New York |
| 18 | James Phelan | 28 | Son-in-law | Clerk | New York |
| 19 | Helen Phelan | 27 | Daughter | — | New York |
| 20 | Frank Foye | 44 | Head | Agent | New York |
| 21 | Helen Foye | 46 | Wife | Teacher | New Jersey |
| 22 | Elizabeth Foye | 18 | Daughter | — | New York |
| 23 | Jack Hassell | 41 | Head | Broker | New York |
| 24 | Eileen Hassell | 37 | Wife | — | Russia |
| 25 | Boyd Hassell | 9 | Son | — | New York |
| 26 | Elise Hassell | 7 | Daughter | — | New York |
| 27 | William Harper | 63 | Head | Executive | New York |
| 28 | Sadie Harper | 61 | Wife | — | New York |
| 29 | William Jr Harper THIS PERSON | 26 | Son | Clerk | New York |
| 30 | William Baumhurst | 44 | Head | Salesman | New York |
| 31 | Vera Baumhurst | 33 | Wife | — | New York |
| 32 | Betty Baumhurst | 12 | Daughter | — | New York |
| 33 | John Baumhurst | 10 | Son | — | New York |
| 34 | Thomas Cartledge | 38 | Lodger | Bricklayer | England |
| 35 | Samuel Taylor | 50 | Head | Lawyer | New Jersey |
| 36 | Cara L Taylor | 46 | Wife | Teacher | New Jersey |
| 37 | Mary E Smith | 54 | Sister-in-law | — | New York |
| 38 | Horatio Lockwood | 61 | Boarder | Tel Messenger | New York |
| 39 | Ernest Chiesa | 68 | Head | — | Italy |
| 40 | Gerda Chiesa | 61 | Wife | — | Italy |
Pedigree Summary
William
Gen 1 · 6 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)