MR
Mary Reilly — 1920 US Census Record
Linked across censuses1920 United States Federal Census · St Louis, Missouri
Our Model Tree links this Mary Reilly across the 1910 and 1920 US Censuses in St Louis, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1909), then head of a 8-person household.
Age 11
b. ~1909
Female
Daughter
Born: Missouri
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | St Louis, Missouri |
| Surname | Reilly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | St Louis |
| Est. Birth Year | ~1909 |
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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Reilly | Daughter | — | 13 | ~1907 |
| Mary Reilly | Daughter | — | 11 | ~1909 |
| Dorothy Reilly | Daughter | — | 9 | ~1911 |
| Edward Reilly | Head | — | 52 | ~1868 |
| James Reilly | Son | — | 7 | ~1913 |
| John Reilly | Son | — | 15 | ~1905 |
| Edward Reilly | Son | — | 20 | ~1900 |
| Margaret Reilly | Spouse | — | 45 | ~1875 |
Census Appearances
1910
St Louis, …
Daughter, age 1
St Louis, Missouri · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reilly |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1920
St Louis, …
Daughter, age 11
St Louis, Missouri · implied b. ~1909 — 8 household members
| Surname | Reilly |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Reilly across 2 US Census years (1910 and 1920) in St Louis, Missouri, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Reilly
Daughter · 1920 · age 11 · b. ~1909 · Missouri
★ You are viewing this record
Sibling
James Reilly
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Reilly
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Reilly
Sibling · 1920 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Reilly
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Reilly
Sibling · 1920 · age 9
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 — St Louis, Missouri
Open full size
1920 US Federal Census — St Louis, Missouri
Page Contents
49 people indexed on this census page (ia:1920:14thcensusofpopu955unit:0279)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Joseph Harris | 37 | Head | Plasterer | Russia |
| 52 | Martha Harris | 36 | Wife | — | Missouri |
| 53 | Angeline Harris | 61 | Mother | — | Switzerland |
| 54 | Frank Harris | 25 | Brother | Collector | Missouri |
| 55 | Harris | 7 | Nephew | — | Missouri |
| 56 | Candrick Harris | 26 | Brother-in-law | Agent | Missouri |
| 57 | Edward Reilly | 52 | Head | Policeman | Ireland |
| 58 | Margaret Reilly | 45 | Wife | — | Ireland |
| 59 | Edward Reilly | 20 | Son | Conductor | Missouri |
| 60 | John Reilly | 15 | Son | Stationary | Missouri |
| 61 | Margaret Reilly | 13 | Daughter | — | Missouri |
| 62 | Mary Reilly THIS PERSON | 11 | Daughter | — | Missouri |
| 63 | Dorothy Reilly | 9 | Daughter | — | Missouri |
| 64 | James Reilly | 7 | Son | — | Missouri |
| 66 | Alice | 31 | Daughter | Stenographer | Missouri |
| 67 | Helen | 28 | Daughter | Clerk | Missouri |
| 68 | John Gregg | 37 | Head | Engineer | Missouri |
| 69 | Ellen Gregg | 34 | Wife | — | Kentucky |
| 70 | John Jr. Gregg | 23 | Son | Fireman | Missouri |
| 71 | Thelma Gregg | 22 | Wife | — | Germany |
| 72 | Lucille Gregg | 3 | Daughter | — | Missouri |
| 73 | Samuel Wally | 46 | Head | Proprietor | West Virginia |
| 74 | Margaret Wally | 45 | Wife | — | Missouri |
| 75 | Samuel Jr. Wally | 10 | Son | — | Missouri |
| 76 | Joseph Lofmeter | 23 | Lodger | Machinist | Germany |
| 77 | John Ryan | 28 | Head | Shoe-Worker | Missouri |
| 78 | Josephine Ryan | 25 | Wife | — | Missouri |
| 79 | John H. Miller | 64 | Head | Clerk | Missouri |
| 80 | Mary D. Miller | 61 | Wife | — | Virginia |
| 81 | Peter Barre | 35 | Head | Proprietor | Italy |
| 82 | Louisa Barre | 24 | Wife | — | Italy |
| 83 | Marie Barre | 6 | Daughter | — | Missouri |
| 84 | Louis Manfredi | 36 | Head | Proprietor | Italy |
| 85 | Antonia Manfredi | 25 | Wife | — | Italy |
| 86 | Joseph Manfredi | 6 | Son | — | Missouri |
| 87 | Louis S. Vogel | 67 | Head | Vice-President | Missouri |
| 88 | Cornelia Vogel | 60 | Wife | — | Missouri |
| 89 | Bertha L. Vogel | 37 | Daughter | Secretary | Missouri |
| 90 | Marie A. Helpert | 61 | Head | — | Missouri |
| 91 | Theodore P. Helpert | 35 | Son | Manager | Missouri |
| 92 | Alice Helpert | 28 | Daughter | Teacher | Missouri |
| 93 | Martha Helpert | 25 | Daughter | Chemist | Missouri |
| 94 | Irene V. Helpert | 21 | Daughter | Teacher | Missouri |
| 95 | William Zochritz | 60 | Head | Lawyer | Missouri |
| 96 | Emma Zochritz | 56 | Wife | — | Missouri |
| 97 | Wm. C. Zochritz | 33 | Son | Manufacturer | Missouri |
| 98 | Leona Zochritz | 25 | Daughter-in-law | — | Missouri |
| 99 | Marjorie Zochritz | 4 | Granddaughter | — | Missouri |
| 100 | Ottilie Berendhoff | 19 | Servant | Servant | 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)