MH
Mary Harmon — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Sussex, Delaware
Our Model Tree links this Mary Harmon across the 1900, 1910 and 1920 US Censuses in Sussex, Delaware (XGBoost, ~Confirmed) — first a spouse (b.~1866), then head of a 5-person household.
Age 54
b. ~1866
Female
Spouse
Born: Delaware
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Sussex, Delaware |
| Surname | Harmon |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Mulatto |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
| Township / Ward | 10Th Dist Part Of 1St Election |
| Est. Birth Year | ~1866 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Addie Harmon | Daughter | — | 10 | ~1910 |
| Unice Harmon | Daughter | — | 16 | ~1904 |
| Robert Harmon | Head | — | 59 | ~1861 |
| Robert Harmon | Son | — | 20 | ~1900 |
| Mary Harmon | Spouse | — | 54 | ~1866 |
Census Appearances
1900
Sussex, Delaware
Spouse, age 35
Sussex, Delaware · implied b. ~1865 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | Mary J. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Delaware |
| Birth Year | 1865 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1910
Sussex, Delaware
Spouse, age 45
Sussex, Delaware · implied b. ~1865 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harmon |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Delaware |
| Years Married | 23 |
| Children Born | 7 |
| Children Living | 7 |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Birth State | Delaware |
| Birth Country | United States |
| Birthplace (normalized) | delaware |
1920
Sussex, Delaware
Spouse, age 54
Sussex, Delaware · implied b. ~1866 — 5 household members
| Surname | Harmon |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Mulatto |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Delaware |
| Father's Birthplace | Delaware |
| Mother's Birthplace | Delaware |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 Mary Harmon across 3 US Census years (1900, 1910 and 1920) in Sussex, Delaware, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Harmon
Spouse · 1920 · age 54 · b. ~1866 · Delaware
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Sussex, Delaware
Open full size
1920 US Federal Census — Sussex, Delaware
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu201unit:0461)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John O | 3 | Son | None | Delaware |
| 52 | Larry Lonsbery | 36 | Head | Farmer | Delaware |
| 53 | Blanche Lonsbery | 33 | Wife | None | Delaware |
| 54 | John Lonsbery | 13 | Son | None | Delaware |
| 55 | Irene Lonsbery | 7 | Son | None | Delaware |
| 56 | Robert Lonsbery | 3 | Son | None | Delaware |
| 57 | John Pettyjohn | 46 | Head | Farmer | Delaware |
| 58 | Nora Pettyjohn | 42 | Wife | None | Delaware |
| 59 | Horace B Pettyjohn | 15 | Son | None | Delaware |
| 60 | Clara M Pettyjohn | 14 | Daughter | None | Delaware |
| 61 | Everet J Pettyjohn | 11 | Son | None | Delaware |
| 62 | James E Salmons | 61 | Head | Farmer | Delaware |
| 63 | Rhoda Salmons | 48 | Wife | None | Delaware |
| 64 | Mary Salmons | 6 | Daughter | None | Delaware |
| 65 | Elmer Salmons | 19 | Son | None | Delaware |
| 66 | Andrew Salmons | 17 | Son | None | Delaware |
| 67 | Delma Salmons | 13 | Daughter | None | Delaware |
| 68 | Rhoda Salmons | 9 | Daughter | None | Delaware |
| 69 | Namiah J Wilson | 73 | Head | Farmer | Delaware |
| 70 | Sarah E Wilson | 68 | Wife | None | Delaware |
| 71 | Robert M Harmon | 59 | Head | Farmer | Delaware |
| 72 | Mary L Harmon THIS PERSON | 54 | Wife | None | Delaware |
| 73 | Robert J Harmon | 20 | Son | None | Delaware |
| 74 | Unice V Harmon | 16 | Daughter | None | Delaware |
| 75 | Addie M Harmon | 10 | Daughter | None | Delaware |
| 76 | John G Donovan | 44 | Head | Farmer | Delaware |
| 77 | Lillie J Donovan | 30 | Wife | None | Delaware |
| 78 | Eldrich W Donovan | 19 | Son | None | Delaware |
| 79 | Author S Donovan | 16 | Son | None | Delaware |
| 80 | Frederick G Workman | 45 | Head | Farmer | Delaware |
| 81 | Adline Workman | 70 | Mother | None | Delaware |
| 82 | Henry E Potter | 61 | Head | Farmer | New York |
| 83 | Hattie E Potter | 63 | Wife | None | New York |
| 84 | Archie Potter | 17 | Son | None | New York |
| 85 | Moses L Leuff | 60 | Head | Farmer | Delaware |
| 86 | Emma J Leuff | 52 | Wife | None | Delaware |
| 87 | Walter S Berwick | 50 | Head | Farmer | Delaware |
| 88 | Ferris Berwick | 14 | Son | None | Delaware |
| 89 | James Berwick | 11 | Son | None | Delaware |
| 90 | Harry Passwaters | 33 | Head | Farmer | Delaware |
| 91 | Lillie Passwaters | 18 | Wife | None | Delaware |
| 92 | Harry Passwaters | 0 | Son | None | Delaware |
| 93 | John W Harmon | 40 | Head | Farmer | Delaware |
| 94 | Eliza Harmon | 32 | Wife | None | Delaware |
| 95 | Mina Harmon | 17 | Son | None | Delaware |
| 96 | Arie Harmon | 15 | Son | None | Delaware |
| 97 | Sallie Harmon | 13 | Daughter | None | Delaware |
| 98 | Fred Harmon | 11 | Son | None | Delaware |
| 99 | George Harmon | 8 | Son | None | Delaware |
| 100 | William Harmon | 4 | Son | None | Delaware |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)