MS
Mary Schmidt — 1920 US Census Record
Model Tree available1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Schmidt across the 1920, 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Mary & L — first a daughter (b.~1908), then head of a 9-person household.
Age 12
b. ~1908
Female
Daughter
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Schmidt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1908 |
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 |
|---|---|---|---|---|
| Leona Schmidt | Daughter | — | 9 | ~1911 |
| Rose Schmidt | Daughter | — | 11 | ~1909 |
| Mary Schmidt | Daughter | — | 12 | ~1908 |
| L Schmidt | Head | — | 45 | ~1875 |
| Mary Cussen | Other | — | 55 | ~1865 |
| Emma Kearney | Other | — | 60 | ~1860 |
| Sylvester Schmidt | Son | — | 5 | ~1915 |
| Alphonse Schmidt | Son | — | 16 | ~1904 |
| Marie Schmidt | Spouse | — | 40 | ~1880 |
Census Appearances
1920
Allegheny, Pennsylvania
Daughter, age 12
Allegheny, Pennsylvania · implied b. ~1908 — 9 household members
| Surname | Schmidt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Daughter, age 23
Allegheny, Pennsylvania · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmid |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Age at First Marriage | 22 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Clerk |
| Industry | Bridge Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Washington-County, Pennsylvania
Daughter, age 34
Washington-County, Pennsylvania · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmied |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Cecil twp. |
| 1935 Residence (County) | Washington |
| Occupation | Clerk |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 3 |
| Income (1939) | 520 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Schmidt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Dorr (~0.92 confidence) and father L Schmidt (~0.92 confidence) and mother Marie Schmidt (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Dorr
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
L Schmidt
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Marie Schmidt
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Schmidt
Daughter · 1920 · age 12 · b. ~1908 · Pennsylvania
★ You are viewing this record
Sibling
Rose Schmidt
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alphonse Schmidt
Sibling · 1920 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sylvester Schmidt
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leona Schmidt
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 — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1523unit:0229)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Bernard Bridge | 6 | Son | None | Massachusetts |
| 52 | Grace Bridge | 4 | Daughter | None | Louisiana |
| 53 | Ida Bridge | 2 | Daughter | None | Massachusetts |
| 54 | L. S. Schmidt | 45 | Head | Superintendent | Ohio |
| 55 | Marie Schmidt | 40 | Wife | None | Pennsylvania |
| 56 | Alphonse Schmidt | 16 | Son | None | Ohio |
| 57 | Mary Schmidt THIS PERSON | 12 | Daughter | None | Pennsylvania |
| 58 | Rose Schmidt | 11 | Daughter | None | Pennsylvania |
| 59 | Leona Schmidt | 9 | Daughter | None | Ohio |
| 60 | Sylvester Schmidt | 5 | Son | None | Pennsylvania |
| 61 | Emma Kearney | 60 | Mother in law | None | Pennsylvania |
| 62 | Mary Cussen | 55 | Aunt | None | Pennsylvania |
| 63 | Amos A. Hilton | 42 | Head | Optician | Massachusetts |
| 64 | Mary M. Hilton | 34 | Wife | None | Pennsylvania |
| 65 | Lyretta A. Hilton | 11 | Daughter | None | Ohio |
| 66 | Theresa Sposato | 43 | Head | None | Italy |
| 67 | Nicholas A. Sposato | 21 | Son | None | Pennsylvania |
| 68 | Alfred J. Sposato | 18 | Son | None | Pennsylvania |
| 69 | Adolph J. Sposato | 17 | Son | None | Pennsylvania |
| 70 | Emil Sposato | 12 | Son | None | Pennsylvania |
| 71 | Gabriel Torchia | 33 | Brother | Clerk | Pennsylvania |
| 72 | Mary Torchia | 24 | Sister | Clerk | Pennsylvania |
| 73 | Mary Torchia | 65 | Mother | None | Italy |
| 74 | Joseph R. Moussa | 32 | Head | Asst Supt. | Italy |
| 75 | Angeline Moussa | 26 | Wife | None | Pennsylvania |
| 76 | Mary Stack | 35 | Servant | None | Ireland |
| 77 | Joseph Potthoff | 29 | Head | Stock Clerk | Pennsylvania |
| 78 | Margaret Potthoff | 27 | Wife | None | Pennsylvania |
| 79 | Joseph Potthoff | 4 | Son | None | Pennsylvania |
| 80 | Francis Potthoff | 1 | Son | None | Pennsylvania |
| 81 | Marcus A. Lindsay | 52 | Head | Contractor | Ireland |
| 82 | Emma T. Lindsay | 31 | Wife | None | Pennsylvania |
| 83 | Marcus J. Lindsay | 21 | Son | Carpenter | Pennsylvania |
| 84 | Alice D. Lindsay | 14 | Daughter | None | Pennsylvania |
| 85 | Arthur Lindsay | 9 | Son | None | Pennsylvania |
| 86 | Sybil Lindsay | 2 | Daughter | None | Pennsylvania |
| 87 | Lindsay | None | — | None | Pennsylvania |
| 88 | Albert W. Seifert | 50 | Head | Operator | United States |
| 89 | Emma Seifert | 48 | Wife | None | Pennsylvania |
| 90 | Rayfield L. Cavenaugh | 31 | Head | Brakeman | un |
| 91 | Mary Cavenaugh | 26 | Wife | None | England |
| 92 | Doris Cavenaugh | 5 | Daughter | None | Pennsylvania |
| 93 | Max B. Max | 39 | Head | Bricklayer | Germany |
| 94 | Caroline Max | 33 | Wife | None | New York |
| 95 | Leonard Max | 15 | Son | None | Maryland |
| 96 | Max Max | 13 | Son | None | Pennsylvania |
| 97 | Caroline Max | 11 | Daughter | None | Pennsylvania |
| 98 | Helen Max | 10 | Daughter | None | Illinois |
| 99 | Florence Tierney | 32 | Head | None | New York |
| 100 | John Tierney | 13 | Son | None | Pennsylvania |
Pedigree Summary
Mary + 4 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)