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William Harper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allen-County, Ohio
Our Model Tree links this William Harper across the 1910, 1920, 1930 and 1940 US Censuses in Allen-County, Ohio (XGBoost, ~Confirmed), with identified parents William & Isaac — first a son (b.~1908), then head of a 4-person household.
Age 32
b. ~1908
Male
Son
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allen-County, Ohio |
| Surname | Harper |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Lima City |
| 1935 Residence (County) | Allen |
| Additional Details | |
| Occupation | Musician |
| Industry | Entertainment |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 128 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Musician |
| Township / Ward | Lima City |
| Est. Birth Year | ~1908 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Mildred Harper | Daughter | — | 20 | ~1920 |
| Isaac Jackson | Head | — | 66 | ~1874 |
| William Harper | Son | — | 32 | ~1908 |
| Delia Jackson | Spouse | — | 60 | ~1880 |
Census Appearances
1910
Allen, Ohio
Son, age 2
Allen, Ohio · implied b. ~1908 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Canada |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Allen, Ohio
Son, age 11
Allen, Ohio · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Canada |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Allen, Ohio
Son, age 22
Allen, Ohio · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | William J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Canada-English |
| Occupation | Boot Black |
| Industry | Shoe Parlor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Allen-County, Ohio
Son, age 32
Allen-County, Ohio · implied b. ~1908 — 4 household members
| Surname | Harper |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Lima City |
| 1935 Residence (County) | Allen |
| Occupation | Musician |
| Industry | Entertainment |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 128 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Harper (~0.92 confidence) and father Isaac Jackson (~0.92 confidence) and mother Delia Harper (~0.92 confidence) and mother Delia Jackson (~0.92 confidence) and mother Lelia Harper (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Harper
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Isaac Jackson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Delia Harper
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Delia Jackson
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Lelia Harper
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Harper
Son · 1940 · age 32 · b. ~1908 · Ohio
★ You are viewing this record
Sibling
Mildred Harper
Sibling · 1940 · age 20
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 — Allen-County, Ohio
Open full size
1940 US Federal Census — Allen-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03021-00246)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorothy M Winter | 25 | Wife | — | Ohio |
| 2 | Hollis Meten | Metes | 29 | Head | Clerical | Ohio |
| 3 | Evelyn Meten | Metes | 19 | Wife | Bookkeeper | Ohio |
| 4 | Ruth R Ritchie | 33 | Lodger | — | Ohio |
| 5 | Nancy Mulen | Muler | 1 | Daughter | — | Ohio |
| 6 | Ernest Helyard | 33 | Head | Sprayer | Ohio |
| 7 | Cora E Helyard | 27 | Wife | — | Ohio |
| 8 | Barbara J Helyard | 5 | Daughter | — | Ohio |
| 9 | Patricia A Helyard | 3 | Daughter | — | Ohio |
| 10 | Richard Ogle | 30 | Head | Laborer | Ohio |
| 11 | Gertrude E Ogle | 35 | Wife | — | Ohio |
| 12 | Janet Ogle | 9 | Daughter | — | Ohio |
| 13 | John Ogle | 7 | Son | — | Ohio |
| 14 | Judith Ogle | 0 | Daughter | — | Ohio |
| 15 | Isaac Jackson | 66 | Head | Janitor | Michigan |
| 16 | Delia Jackson | 60 | Wife | — | Ohio |
| 17 | William Harper THIS PERSON | 32 | Son | Musician | Ohio |
| 18 | Mildred Harper | 20 | Daughter | Typist | Ohio |
| 19 | — | None | — | — | — |
| 20 | Samuel L Speer | 65 | Head | Merchant | Russia |
| 21 | Julia Speer | 62 | Wife | — | Lithuania |
| 22 | Richard H Cantwell | 27 | Head | Salesman | Indiana |
| 23 | Kathryn Cantwell | 26 | Wife | — | Iowa |
| 24 | Phyllis Cantwell | 4 | Daughter | — | Indiana |
| 25 | Richard Cantwell | 2 | Son | — | Indiana |
| 26 | Frances D Smith | 35 | Head | Salesman | Indiana |
| 27 | Alberta A Smith | 28 | Wife | — | Indiana |
| 28 | Barbara Ann Smith | 0 | Daughter | — | Ohio |
| 29 | Leonard Harrison | 48 | Head | Contractor | Ohio |
| 30 | Leonard Jr Harrison | 22 | Son | Reporter | Ohio |
| 31 | Harriet J Harrison | 65 | Mother | — | New York |
| 32 | Blanche Shoup | 42 | Head | Saleslady | Penn. |
| 33 | Robert Shoup | 23 | Son | Clerical | Ohio |
| 34 | Jack Shoup | 14 | Son | — | Ohio |
| 35 | Richard Robinson | 23 | Nephew | Wagon Salesman | Penn. |
| 36 | Lee Lugarden | 37 | Lodger | Waiter | Ohio |
| 37 | — | None | — | — | — |
| 38 | Cleo Mcdrieny | Mcdreery | 40 | Head | — | Ohio |
| 39 | Patricia Mcdrieny | Mcdreery | 11 | Daughter | — | Ohio |
| 40 | Larry Mcdrieny | Mcdreery | 8 | Son | — | Ohio |
Pedigree Summary
William + 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)