MC
Mary Campbell — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Campbell across the 1900, 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a spouse (b.~1877), then head of a 6-person household.
Age 43
b. ~1877
Female
Spouse
Born: Scotland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Campbell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1907 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Year of Naturalization | 1915 |
| Birthplace (normalized) | scotland |
| Township / Ward | Turtle Creek Borough |
| Est. Birth Year | ~1877 |
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.
6 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Campbell | Daughter | — | 14 | ~1906 |
| John Campbell | Head | — | 43 | ~1877 |
| William Campbell | Son | — | 8 | ~1912 |
| Colin Campbell | Son | — | 13 | ~1907 |
| John Campbell | Son | — | 19 | ~1901 |
| Mary Campbell | Spouse | — | 43 | ~1877 |
Census Appearances
1900
Allegheny, Pennsylvania
Spouse, age 29
Allegheny, Pennsylvania · implied b. ~1871 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Mary M |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Scotland |
| Birth Month | Feb |
| Birth Year | 1871 |
| Year of Immigration | 1886 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1910
Allegheny, Pennsylvania
Spouse, age 35
Allegheny, Pennsylvania · implied b. ~1875 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Scotland |
| Years Married | 4 |
| Year of Immigration | 1902 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Industry | Home |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1920
Allegheny, Pennsylvania
Spouse, age 43
Allegheny, Pennsylvania · implied b. ~1877 — 6 household members
| Surname | Campbell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1907 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Year of Naturalization | 1915 |
| Birthplace (normalized) | scotland |
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 Campbell across 3 US Census years (1900, 1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
Mary Campbell
Spouse · 1920 · age 43 · b. ~1877 · Pennsylvania
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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 — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1529unit:0473)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Marie Kennedy | 12 | Daughter | — | Pennsylvania |
| 52 | Marion Kennedy | 12 | Daughter | — | Pennsylvania |
| 53 | Martin Sladek | 50 | Head | Toolmaker | Hungary |
| 54 | Julia Sladek | 48 | Wife | — | Austria |
| 55 | Richard Sladek | 26 | Son | Clerk | Austria |
| 56 | Paul Sladek | 23 | Son | Musician | Austria |
| 57 | Millard M. Beach | 45 | Head | Laborer | Pennsylvania |
| 58 | Sarah Beach | 39 | Wife | — | Pennsylvania |
| 59 | Martha Beach | 18 | Daughter | Coil Winder | Pennsylvania |
| 60 | Ida J. Beach | 16 | Daughter | Coil Winder | Pennsylvania |
| 61 | Grace V. Beach | 13 | Daughter | — | Pennsylvania |
| 62 | Clara P. Beach | 11 | Daughter | — | Pennsylvania |
| 63 | William N. Beach | 9 | Son | — | Pennsylvania |
| 64 | Arthur Beach | 7 | Son | — | Pennsylvania |
| 65 | Anna Beach | 5 | Daughter | — | Pennsylvania |
| 66 | Lawrence Beach | 3 | Son | — | Pennsylvania |
| 67 | Beach | 1 | Daughter | — | Pennsylvania |
| 68 | Anthony Sorku | 42 | Head | Foreman | Austria |
| 69 | Mary Sorku | 34 | Wife | — | Austria |
| 70 | Carl Edlauer | 32 | Boarder | Machinist | Austria |
| 71 | Alex Nadjew | 42 | Boarder | Laborer | Austria |
| 72 | James Lilly | 37 | Head | Clerk | Pennsylvania |
| 73 | Lucy Lilly | 32 | Wife | — | Pennsylvania |
| 74 | Frank Lilly | 8 | Son | — | Pennsylvania |
| 75 | Mary Lilly | 6 | Daughter | — | Pennsylvania |
| 76 | James Branick | 37 | Head | Laborer | Pennsylvania |
| 77 | Mary Branick | 28 | Wife | — | Pennsylvania |
| 78 | Harriet Branick | 5 | Daughter | — | Pennsylvania |
| 79 | John Campbell | 43 | Head | Foreman | Scotland |
| 80 | Mary Campbell THIS PERSON | 43 | Wife | — | Scotland |
| 81 | John R. Campbell | 19 | Son | Machinist | Scotland |
| 82 | Margaret Campbell | 14 | Daughter | — | Scotland |
| 83 | Colin Campbell | 13 | Son | — | Scotland |
| 84 | William Campbell | 8 | Son | — | Pennsylvania |
| 85 | J. M. Cook | 41 | Head | Air Mechanic | Pennsylvania |
| 86 | Margaret Cook | 37 | Wife | — | Pennsylvania |
| 87 | Sarah Cook | 16 | Daughter | Bookkeeper | Pennsylvania |
| 88 | Harry Cook | 14 | Son | — | Pennsylvania |
| 89 | William Harper | 26 | Head | Laborer | Scotland |
| 90 | Mirl Harper | 25 | Wife | — | Pennsylvania |
| 91 | David L. Harper | 3 | Son | — | Pennsylvania |
| 92 | William H. Harper | 0 | Son | — | Pennsylvania |
| 93 | Thomas Patterson | 27 | Head | Wireman | Maryland |
| 94 | Kathryn Patterson | 21 | Wife | — | Pennsylvania |
| 95 | Thomas J. Patterson | 3 | Son | — | Maryland |
| 96 | Catherine Patterson | 1 | Daughter | — | Maryland |
| 97 | Lyle T. Ashbaugh | 30 | Head | Coil Winder | Pennsylvania |
| 98 | Olive F. Ashbaugh | 30 | Wife | — | Pennsylvania |
| 99 | Robert Ashbaugh | 4 | Son | — | Pennsylvania |
| 100 | Mary J. Ashbaugh | 58 | Mother | — | Pennsylvania |
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)