MH
Mary Harmon — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Marshall, Indiana
Our Model Tree links this Mary Harmon across the 1910 and 1920 US Censuses in Marshall, Indiana (XGBoost, ~Confirmed) — first a daughter (b.~1910), then head of a 9-person household.
Age 10
b. ~1910
Female
Daughter
Born: Indiana
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Marshall, Indiana |
| Surname | Harmon |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Union Twp |
| Est. Birth Year | ~1910 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edna Harmon | Daughter | — | 12 | ~1908 |
| Ardis Harmon | Daughter | — | 14 | ~1906 |
| Ruth Harmon | Daughter | — | ~1920 | |
| Ruth Harmon | Daughter | — | 7 | ~1913 |
| Agnes Harmon | Daughter | — | 2 | ~1918 |
| Mary Harmon | Daughter | — | 10 | ~1910 |
| Wm Harmon | Head | — | 34 | ~1886 |
| Wm Harmon | Son | — | 5 | ~1915 |
| Blanche Harmon | Spouse | — | 37 | ~1883 |
Census Appearances
1910
Marshall, Indiana
Daughter, age
Marshall, Indiana · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harman |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1920
Marshall, Indiana
Daughter, age 10
Marshall, Indiana · implied b. ~1910 — 9 household members
| Surname | Harmon |
| Given Name | Mary L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 2 US Census years (1910 and 1920) in Marshall, Indiana, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Harmon
Daughter · 1920 · age 10 · b. ~1910 · Indiana
★ You are viewing this record
Sibling
Ruth Harmon
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Harmon
Sibling · 1920 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Harmon
Sibling · 1920 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ardis Harmon
Sibling · 1920 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wm Harmon
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Harmon
Sibling · 1920 · age 2
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
1920 US Federal Census — Marshall, Indiana
Open full size
1920 US Federal Census — Marshall, Indiana
Page Contents
49 people indexed on this census page (ia:1920:14thcensusofpopu456unit:1001)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter E Snyder | 38 | Head | Farmer | Indiana |
| 2 | Alberta E Snyder | 10 | Daughter | — | Indiana |
| 3 | Leo M Snyder | 8 | Son | — | Indiana |
| 4 | Mildred L Snyder | 3 | Daughter | — | Indiana |
| 5 | Hazel E Snyder | 1 | Daughter | — | Indiana |
| 6 | Ora E Waddle | 47 | Head | Farmer | Indiana |
| 7 | Lucy B Waddle | 44 | Wife | — | Indiana |
| 8 | Thelma S Waddle | 15 | Daughter | — | Indiana |
| 9 | Wm H Waddle | 43 | Brother | — | Indiana |
| 10 | Elmer S Gantz | 37 | Head | Farm Laborer | Indiana |
| 11 | Grace Gantz | 36 | Wife | — | Indiana |
| 12 | Chas Bernice Gantz | 14 | Daughter | — | Indiana |
| 13 | Arthur Harold Gantz | 10 | Son | — | Indiana |
| 14 | Oscar Verlin Gantz | 6 | Son | — | Indiana |
| 15 | John R Stephens | 49 | Head | Farmer | Nebraska |
| 16 | Clara Bell Stephens | 46 | Wife | — | Illinois |
| 17 | Nelson Paul W Stephens | 19 | Son | Laborer | Indiana |
| 18 | Marion Albright | 50 | Head | Farmer | Illinois |
| 19 | Anna Albright | 49 | Wife | — | Illinois |
| 20 | Clarence Albright | 20 | Son | Farmer | Illinois |
| 21 | Gladys M Albright | 18 | Daughter | — | Illinois |
| 22 | Isaac John Albright | 55 | Brother-in-law | Laborer | Pennsylvania |
| 23 | Augustus Whiteman | 50 | Head | Farmer | California |
| 24 | Anna T Whiteman | 48 | Wife | — | Indiana |
| 25 | Evelyn Whiteman | 10 | Daughter | — | Indiana |
| 26 | Gwaltney Chas E Whiteman | 28 | Son-in-law | — | Indiana |
| 27 | Gwaltney Alma Whiteman | 23 | Daughter | Laborer | United States |
| 28 | Gwaltney J Floyd Whiteman | 16 | Son-in-law | Laborer | Indiana |
| 29 | Andrew Rouch | 37 | Head | Farmer | Indiana |
| 30 | Verba M Rouch | 32 | Wife | — | Indiana |
| 31 | Maryon E Rouch | 4 | Daughter | — | Indiana |
| 32 | Vesta Rouch | 2 | Daughter | — | Indiana |
| 33 | Snyder Caroline Rouch | 70 | Mother | — | Indiana |
| 34 | Wm E Harmon | 34 | Head | Farmer | Indiana |
| 35 | Blanche V Harmon | 37 | Wife | — | Indiana |
| 36 | Ardis L Harmon | 14 | Daughter | — | Indiana |
| 37 | Edna B Harmon | 12 | Daughter | — | Indiana |
| 38 | Mary L Harmon THIS PERSON | 10 | Daughter | — | Indiana |
| 39 | Ruth Harmon | 7 | Daughter | — | Indiana |
| 40 | Wm Kenneth Harmon | 5 | Son | — | Indiana |
| 41 | Agnes E Harmon | 2 | Daughter | — | Indiana |
| 42 | Ruth E Harmon | 0 | Daughter | — | Indiana |
| 43 | Cecil E Mcclure | 24 | Head | Farmer | Illinois |
| 44 | Mabel M Mcclure | 24 | Wife | — | Indiana |
| 45 | Mary Grace Mcclure | 1 | Daughter | — | Indiana |
| 46 | Harmon Sarah Mcclure | 68 | Mother-in-law | — | Indiana |
| 47 | John P Lenhart | 48 | Head | Farmer | Indiana |
| 48 | Emma A Lenhart | 50 | Wife | — | Indiana |
| 49 | Hazel Elda Lenhart | 14 | Daughter | — | Indiana |
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)