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William Harmon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Sussex, Delaware
Our Model Tree links this William Harmon across the 1920 and 1930 US Censuses in Sussex, Delaware (XGBoost, ~Confirmed) — first a son (b.~1914), then head of a 11-person household.
Age 16
b. ~1914
Male
Son
Born: Delaware
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Sussex, Delaware |
| Surname | Harmon |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | 10Th Representative District |
| 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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Fred Harmon | Son | — | 20 | ~1910 |
| Ieza Harmon | Other | — | 49 | ~1881 |
| George Harmon | Son | — | 18 | ~1912 |
| Mary Harmon | Daughter | — | 13 | ~1917 |
| Sally Harmon | Daughter | — | 24 | ~1906 |
| John Harmon | Head | — | 44 | ~1886 |
| Grey Harmon | Daughter | — | 25 | ~1905 |
| William Harmon | Son | — | 16 | ~1914 |
| Manuel Harmon | Son | — | 27 | ~1903 |
| James Harmon | Son | — | 12 | ~1918 |
| Bessie Harmon | Daughter | — | 6 | ~1924 |
Census Appearances
1920
Sussex, Delaware
Son, age 4
Sussex, Delaware · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Mulatto |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | none |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1930
Sussex, Delaware
Son, age 16
Sussex, Delaware · implied b. ~1914 — 11 household members
| Surname | Harmon |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read/Write | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
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 Harmon across 2 US Census years (1920 and 1930) in Sussex, Delaware, using XGBoost record linkage.
Show:
This person
Anchor record
William Harmon
Son · 1930 · age 16 · b. ~1914 · Delaware
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Sibling
James Harmon
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Manuel Harmon
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sally Harmon
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bessie Harmon
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Harmon
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Harmon
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Harmon
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grey Harmon
Sibling · 1930 · age 25
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
1930 US Federal Census — Sussex, Delaware
Open full size
1930 US Federal Census — Sussex, Delaware
Page Contents
50 people indexed on this census page (ia:1930:15thcensus291unit:0914)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | W Hugh Pettyjohn | 4 | Son | — | Delaware |
| 52 | George Pettyjohn | 69 | Head | Farmer | Delaware |
| 53 | Anne Pettyjohn | 66 | Wife-H | — | Delaware |
| 54 | Everett Pettyjohn | 38 | Son | Soliciter | Delaware |
| 55 | Thelma Pettyjohn | 30 | Daughter | Teacher | Delaware |
| 56 | Myrtle Pettyjohn | 28 | Daughter | — | Delaware |
| 57 | David Jefferson | 38 | Head | Farmer | Delaware |
| 58 | Priscilla Jefferson | 37 | Wife-H | — | Delaware |
| 59 | Ethel Jefferson | 8 | Daughter | — | Delaware |
| 60 | August Loring | 64 | Head | Farmer | Michigan |
| 61 | Alvina Loring | 47 | Wife-H | — | Finland |
| 62 | William Loring | 18 | Son | — | Michigan |
| 63 | Walter Hoyt | 31 | Head | Timber Cutter | West Virginia |
| 64 | Regina Hoyt | 30 | Wife-H | — | Maryland |
| 65 | Charles Hoyt | 5 | Son | — | Maryland |
| 66 | Fred Workman | 56 | Head | Farmer | Delaware |
| 67 | Adline Workman | 82 | Mother | — | Delaware |
| 68 | Eveline Workman | 57 | Sister-H | — | Delaware |
| 69 | Barre Stone | 84 | Head | Farmer | New York |
| 70 | Nelia Stone | 68 | Wife-H | — | New York |
| 71 | John Harmon | 44 | Head | Farmer | Delaware |
| 72 | Ieza Harmon | 49 | Wife-H | — | Delaware |
| 73 | Manuel Harmon | 27 | Son | Laborer | Delaware |
| 74 | Grey Harmon | 25 | Daughter | — | Delaware |
| 75 | Sally Harmon | 24 | Daughter | — | Delaware |
| 76 | Fred Harmon | 20 | Son | Laborer | Delaware |
| 77 | George Harmon | 18 | Son | Laborer | Delaware |
| 78 | William Harmon THIS PERSON | 16 | Son | — | Delaware |
| 79 | Mary Harmon | 13 | Daughter | — | Delaware |
| 80 | James Harmon | 12 | Son | — | Delaware |
| 81 | Bessie Harmon | 6 | Daughter | — | Delaware |
| 82 | Elmer D. Prey | 48 | Head | Poultry Man | Nebraska |
| 83 | Harriet Prey | 35 | Wife-H | — | Kentucky |
| 84 | Robert Workman | 54 | Head | Farmer | Delaware |
| 85 | Virgi Workman | 45 | Wife-H | — | Delaware |
| 86 | Willard Workman | 14 | Son | — | Delaware |
| 87 | David Workman | 11 | Son | — | Delaware |
| 88 | Howard Workman | 10 | Son | — | Delaware |
| 89 | Marie Workman | 7 | Daughter | — | Delaware |
| 90 | John Cooke | 32 | Lodger | Laborer | Pennsylvania |
| 91 | John Jason | 25 | Head | Cutter | Delaware |
| 92 | Naomi Jason | 23 | Daughter | — | Delaware |
| 93 | Robert Jason | 3 | Grandson | — | Delaware |
| 94 | Fred Cliffen | 44 | Head | Farmer | Delaware |
| 95 | Cila Cliffen | 44 | Wife-H | — | Delaware |
| 96 | Nolan Cliffen | 24 | Son | Laborer | Delaware |
| 97 | Carey Cliffen | 22 | Son | Laborer | Delaware |
| 98 | George Postles | 51 | Head | Farmer | Delaware |
| 99 | Ethel Postles | 48 | Wife-H | — | Delaware |
| 100 | Mary Postles | 20 | Daughter | — | Delaware |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)