WH
William Harper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Monroe-County, Ohio
Our Model Tree links this William Harper across the 1920, 1930 and 1940 US Censuses in Monroe-County, Ohio (XGBoost, ~Confirmed), with identified parents Sanford & Sarah — first a son (b.~1924), then head of a 5-person household.
Age 16
b. ~1924
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Ohio |
| Surname | Harper |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Jerusalem |
| Est. Birth Year | ~1924 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Arden Harper | Daughter | — | 12 | ~1928 |
| Irene Harper | Daughter | — | 18 | ~1922 |
| Uric Harper | Head | — | 48 | ~1892 |
| William Harper | Son | — | 16 | ~1924 |
| Eloy Harper | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Hamilton, Ohio
Son, age 1
Hamilton, Ohio · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Kentucky |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Son, age 11
Hamilton, Ohio · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | William A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Monroe-County, Ohio
Son, age 16
Monroe-County, Ohio · implied b. ~1924 — 5 household members
| Surname | Harper |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (County) | Monroe |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Sanford Harper (~0.81 confidence) and mother Sarah Harper (~0.81 confidence) and mother Maggie Harper (~0.92 confidence) and father Uric Harper (~0.92 confidence) and father Walter Harper (~0.92 confidence) and mother Jennie Harper (~0.92 confidence) and mother Eloy Harper (~0.92 confidence). The pedigree spans 2 generations with 7 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.89
Father
Sanford Harper
b. ~1848
Source father>father
● Household
· direct · ~0.81
Mother
Sarah Harper
b. ~1869
Source father>mother
● Household
· direct · ~0.81
Mother
Maggie Harper
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
Uric Harper
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Walter Harper
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Jennie Harper
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Eloy Harper
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Harper
Son · 1940 · age 16 · b. ~1924 · Ohio
★ You are viewing this record
Sibling
Arden Harper
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Harper
Sibling · 1940 · age 18
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 — Monroe-County, Ohio
Open full size
1940 US Federal Census — Monroe-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03117-00270)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sue Ann Friday | 2 | daughter | Same Place | — |
| 42 | Mary Bennett | 66 | mother in law | — | W Virginia |
| 43 | Emma Reed | 71 | head | — | Ohio |
| 44 | John Reed | 32 | son | 40 | Ohio |
| 45 | Raymond Aller | 31 | head | 30 | Ohio |
| 46 | Edith Aller | 26 | wife | — | Ohio |
| 47 | Chas Hoff | 60 | head | 48 | Ohio |
| 48 | Laura Hoff | 51 | wife | — | Ohio |
| 49 | Emma L Smith | 72 | head | — | Ohio |
| 50 | Uric Harper | 48 | head | 40 | Ohio |
| 51 | Eloy Harper | 43 | wife | — | Ohio |
| 52 | Irene Harper | 18 | daughter | — | Ohio |
| 53 | William Harper THIS PERSON | 16 | son | — | Ohio |
| 54 | Arden Ann Harper | 12 | daughter | — | Ohio |
| 55 | Lydia Murphy | 76 | head | — | Ohio |
| 56 | Sarah Moberly | 72 | head | — | Ohio |
| 57 | William Morgan | 69 | head | — | South Wales |
| 58 | Lucy Morgan | 64 | wife | — | Ohio |
| 59 | Myrta Van Dyne | 67 | head | — | Ohio |
| 60 | Annie Moore | 65 | head | — | Ohio |
| 61 | Russell Rowley | 37 | head | 40 | Ohio |
| 62 | Gertrude Rowley | 34 | wife | — | Ohio |
| 63 | Jack R Rowley | 11 | son | — | Ohio |
| 64 | Lee H Rowley | 3 | son | — | Ohio |
| 65 | George F Ault | 66 | head | — | Ohio |
| 66 | Alice Ault | 34 | wife | — | Ohio |
| 67 | Emily K Tipton | 66 | head | — | Missouri |
| 68 | M W Thomas | 62 | head | 45 | Ohio |
| 69 | Elizabeth Thomas | 52 | wife | — | Ohio |
| 70 | Mildred Thomas | 15 | daughter | — | Ohio |
| 71 | William H Shuman | 65 | head | — | Ohio |
| 72 | Maude Shuman | 60 | wife | — | Illinois |
| 73 | William Murphy | 39 | head | 40 | Ohio |
| 74 | Martha Murphy | 33 | wife | — | Ohio |
| 75 | Norma Rogers | 11 | lodger | — | Ohio |
| 76 | Richard Murphy | 9 | son | — | Ohio |
| 77 | Barbara Murphy | 8 | daughter | — | Ohio |
| 78 | Charles Murphy | 6 | son | — | Ohio |
| 79 | Randall Murphy | 5 | son | — | Ohio |
| 80 | Marlene Murphy | 3 | daughter | — | Ohio |
Pedigree Summary
William + 2 siblings
Gen 1 · 5 parents
~0.92
Gen 2 · 2 grandparents
~0.81
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)