MH
Mary Horn — 1920 US Census Record
Linked across censuses1920 United States Federal Census · St Louis, Missouri
Our Model Tree links this Mary Horn across the 1900, 1910 and 1920 US Censuses in St Louis, Missouri (XGBoost, ~Confirmed) — first a head (b.~1847), then head of a 5-person household.
Age 73
b. ~1847
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | St Louis, Missouri |
| Surname | Horn |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1840 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | St Louis |
| Est. Birth Year | ~1847 |
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 |
|---|---|---|---|---|
| John Horn | Son | — | 36 | ~1884 |
| Patrick Horn | Son | — | 40 | ~1880 |
| Mary Horn | Head | — | 73 | ~1847 |
| James Moore | Other | — | 49 | ~1871 |
| James Horn | Son | — | 38 | ~1882 |
Census Appearances
1900
St Louis, …
Head, age 55
St Louis, Missouri · implied b. ~1845
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Horn |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Birth Month | Mar |
| Birth Year | 1845 |
| Year of Immigration | 1870 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
St Louis, …
Head, age 62
St Louis, Missouri · implied b. ~1848 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Horn |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
St Louis, …
Head, age 73
St Louis, Missouri · implied b. ~1847 — 5 household members
| Surname | Horn |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1840 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Horn across 3 US Census years (1900, 1910 and 1920) in St Louis, Missouri, using XGBoost record linkage.
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This person
Anchor record
Mary Horn
Head · 1920 · age 73 · b. ~1847 · Missouri
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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 — St Louis, Missouri
Open full size
1920 US Federal Census — St Louis, Missouri
Page Contents
48 people indexed on this census page (ia:1920:14thcensusofpopu957unit:0354)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Rudolph Bollaer | 68 | Head | Cabinet Maker | Germany |
| 52 | Emelia Bollaer | 53 | Wife | — | Germany |
| 53 | Charles Unites | 25 | Head | Conductor | Missouri |
| 54 | Ruth Unites | 21 | Wife | — | Missouri |
| 55 | Louise Unites | 4 | Daughter | — | Missouri |
| 56 | Charles Unites | 2 | Son | — | Missouri |
| 57 | Brown Unites | 24 | Brother | — | Missouri |
| 58 | Exie Unites | 25 | Wife | Conductor | Alabama |
| 59 | William Kern | 56 | Head | Barber | New York |
| 60 | Amelia Kern | 51 | Wife | — | Missouri |
| 61 | Aloysius Kern | 27 | Son | Laborer | Missouri |
| 63 | William Thomas | 41 | Head | Yard Man | Missouri |
| 64 | Daisy Thomas | 42 | Wife | — | Missouri |
| 65 | Anna Poe | 62 | Head | Laundress | Virginia |
| 66 | Mattie Rollins | 29 | Daughter | Laundress | Missouri |
| 67 | James Brown | 11 | Grandson | — | Missouri |
| 68 | Gray Spencer | 17 | Grandson | Laborer | Missouri |
| 69 | Gray Spencer | 4 | Grandson | — | Missouri |
| 70 | Maurice Carey | 44 | Head | Teamster | Missouri |
| 71 | Rosa Carey | 41 | Wife | — | Missouri |
| 72 | John Begley | 51 | Head | Teamster | Missouri |
| 73 | Anna Begley | 50 | Wife | — | Iowa |
| 74 | Thomas Ward | 40 | Head | Laborer | Missouri |
| 75 | William Ward | 69 | Father | Watchman | Ireland |
| 76 | Dan Regan | 46 | Head | Machinist | Missouri |
| 77 | Hattie Regan | 37 | Wife | Laundress | Kentucky |
| 78 | Leon Howe | 43 | Head | Teamster | Kentucky |
| 79 | Lulu Howe | 34 | Wife | — | Missouri |
| 80 | Theodore Howe | 7 | Son | — | Missouri |
| 81 | Edward Howe | 3 | Son | — | Missouri |
| 82 | Ester Howe | 1 | Daughter | — | Missouri |
| 83 | Blanche Howe | 1 | Daughter | — | Missouri |
| 84 | Ellen Johnson | 58 | Mother in law | Servant | Tennessee |
| 86 | Mary Horn THIS PERSON | 73 | Head | — | Ireland |
| 87 | Patrick Horn | 40 | Son | Teamster | Missouri |
| 88 | James Horn | 38 | Son | Shoe Cutter | Missouri |
| 89 | John Horn | 36 | Son | Shoe Maker | Missouri |
| 90 | James Moore | 49 | Boarder | Teamster | Ireland |
| 91 | Raymond Simmons | 25 | Head | Coal Miner | Illinois |
| 92 | Georgia Simmons | 24 | Wife | — | Illinois |
| 93 | Walter Simmons | 5 | Son | — | Illinois |
| 94 | Raymond Simmons | 3 | Son | — | Illinois |
| 95 | Gladys Simmons | 2 | Daughter | — | Illinois |
| 96 | Dorothy Simmons | 1 | Daughter | — | Illinois |
| 97 | Nora Heinger | 50 | Mother in law | — | Illinois |
| 98 | Vincent Leaf | 22 | Head | Cook | Illinois |
| 99 | Ornel Leaf | 22 | Wife | Waiter | Missouri |
| 100 | Veronica Leaf | 3 | Daughter | — | Missouri |
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)