MH
Mary Harper — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Hamilton, Illinois
Our Model Tree links this Mary Harper across the 1900, 1910 and 1920 US Censuses in Hamilton, Illinois (XGBoost, ~Confirmed) — first a head (b.~1852), then head of a 3-person household.
Age 68
b. ~1852
Female
Head
Born: Illinois
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Hamilton, Illinois |
| Surname | Harper |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Mcleansboro |
| Est. Birth Year | ~1852 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Sarah Harper | Daughter | — | 37 | ~1883 |
| Mary Harper | Head | — | 68 | ~1852 |
| Oscar Clark | Son | — | 10 | ~1910 |
Census Appearances
1900
Hamilton, Illinois
Spouse, age 51
Hamilton, Illinois · implied b. ~1849 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Mary C |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Illinois |
| Birth Month | Feb |
| Birth Year | 1849 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1910
Hamilton, Illinois
Spouse, age 59
Hamilton, Illinois · implied b. ~1851 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Illinois |
| Years Married | 21 |
| Children Born | 1 |
| Children Living | 1 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Hamilton, Illinois
Head, age 68
Hamilton, Illinois · implied b. ~1852 — 3 household members
| Surname | Harper |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Harper across 3 US Census years (1900, 1910 and 1920) in Hamilton, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Harper
Head · 1920 · age 68 · b. ~1852 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Hamilton, Illinois
Open full size
1920 US Federal Census — Hamilton, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu366unit:1024)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James B Campbell | 66 | Head | Bank | Illinois |
| 2 | Patsy B Campbell | 61 | Wife | — | Illinois |
| 3 | Val B Campbell | 39 | Son | Bank | Illinois |
| 4 | Madeline Campbell | 26 | Wife | — | Illinois |
| 5 | Charles Sneed | 46 | Head | Funeral | Illinois |
| 6 | Catherine Sneed | 46 | Wife | — | Illinois |
| 7 | Leona Holland | 22 | Ad. Daughter | Clerk | Illinois |
| 8 | Frank Glenn | 28 | Boarder | Clerk | Illinois |
| 9 | Marion Hughes | 30 | Head | — | Illinois |
| 10 | Eva Hughes | 28 | Wife | — | Texas |
| 11 | Doris Hughes | 8 | Daughter | — | Indiana |
| 12 | Doyle Hughes | 6 | Son | — | Indiana |
| 13 | Dwight Hughes | 1 | Son | — | Illinois |
| 14 | Floris Erwin | 62 | Head | — | Illinois |
| 15 | Catherine Erwin | 57 | Wife | — | Illinois |
| 16 | Mary Allen | 72 | Head | — | Kentucky |
| 17 | Jesse G Bond | 78 | Head | — | Illinois |
| 18 | Mary E Bond | 74 | Wife | — | Illinois |
| 19 | James Beard | 49 | Head | — | Illinois |
| 20 | Emma Beard | 35 | Wife | — | Illinois |
| 21 | William Beard | 15 | Son | — | Illinois |
| 22 | Marie Beard | 11 | Daughter | — | Illinois |
| 23 | Milford Beard | 5 | Son | — | Illinois |
| 24 | Robert Beard | 4 | Son | — | Illinois |
| 25 | Robert Main | 65 | Head | Laborer | Illinois |
| 26 | Martha Main | 57 | Wife | — | Illinois |
| 27 | William Mcdaniel | 54 | Head | Laborer | Illinois |
| 28 | Sara Mcdaniel | 47 | Wife | — | Illinois |
| 29 | Thomas Mcdaniel | 27 | Son | — | Illinois |
| 30 | John Mcdaniel | 15 | Son | — | Illinois |
| 31 | Laura Mcdaniel | 13 | Daughter | — | Illinois |
| 32 | Woodrow Mcdaniel | 6 | Son | — | Illinois |
| 33 | Mary Harper THIS PERSON | 68 | Head | — | Illinois |
| 34 | Sarah Harper | 37 | Daughter | — | Illinois |
| 35 | Oscar Clark | 10 | Son | — | Illinois |
| 36 | Joseph Kohl | 55 | Head | — | Indiana |
| 37 | Lena Kohl | 48 | Sister | — | Indiana |
| 38 | Benjamin Davies | 54 | Head | — | Kentucky |
| 39 | Maud Davies | 43 | Wife | — | Illinois |
| 40 | Robert Davies | 15 | Son | — | Illinois |
| 41 | Imogene Davies | 13 | Daughter | — | Illinois |
| 42 | Mary Davies | 11 | Daughter | — | Illinois |
| 43 | Elmer Summers | 33 | Head | — | Indiana |
| 44 | Anna Martin | 33 | Sis-Law | — | Kentucky |
| 45 | Mildred Martin | 10 | Daughter | — | Indiana |
| 46 | Elmer Martin | 9 | Son | — | Indiana |
| 47 | Birdie Martin | 7 | Son | — | Indiana |
| 48 | James Hindman | 50 | Head | Carpenter | Indiana |
| 49 | Bertha Hindman | 42 | Wife | — | Indiana |
| 50 | Lee Gentry | 63 | Head | — | Kentucky |
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)