MD
Mary Douglas — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Douglas across the 1920, 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 2-person household.
Age 55
b. ~1875
Female
Head
Born: England
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Douglas |
| Given Name | Mary J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 20 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Additional Details | |
| Occupation | Ruler |
| Industry | Printing Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Ruler |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1875 |
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.
2 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Sarah Gutterman | Daughter | — | 25 | ~1905 |
| Mary Douglas | Head | — | 55 | ~1875 |
Census Appearances
1920
Allegheny, Pennsylvania
Spouse, age 45
Allegheny, Pennsylvania · implied b. ~1875 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | England |
| Father's Birthplace | England |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Birthplace (normalized) | england |
1930
Allegheny, Pennsylvania
Head, age 55
Allegheny, Pennsylvania · implied b. ~1875 — 2 household members
| Surname | Douglas |
| Given Name | Mary J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 20 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Ruler |
| Industry | Printing Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Allegheny-County, Pennsylvania
Other, age 66
Allegheny-County, Pennsylvania · implied b. ~1874 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | Mary S. |
| Relationship to Head | Mother-in-law |
| Sex | F |
| Color / Race | White |
| Age | 66 |
| Marital Status | Widowed |
| Birthplace | England |
| 1935 Residence (City) | Pittsburgh |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Douglas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Douglas
Head · 1930 · age 55 · b. ~1875 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1988:0886)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth J. Lindsay | 65 | Head | — | Pennsylvania |
| 2 | William H. Lindsay | 37 | Son | Superintendent | Pennsylvania |
| 3 | Margaret Lindsay | 28 | Wife-L | — | Pennsylvania |
| 4 | William H. Lindsay | 2 | Grandson | — | Pennsylvania |
| 5 | Mary J. Douglas THIS PERSON | 55 | Head | Ruler | England |
| 6 | Sarah Gutterman | 25 | Daughter | Elevator Operator | Pennsylvania |
| 7 | Charles E. Hertrick | 59 | Head | Clerk | Pennsylvania |
| 8 | Lillian A. Hertrick | 58 | Wife | — | Pennsylvania |
| 9 | Charles H. Hertrick | 20 | Son | — | Pennsylvania |
| 10 | Christian Lampe | 82 | Father-in-law | — | Germany |
| 11 | Arthur H. Baird | 57 | Head | Printer | Pennsylvania |
| 12 | M. Ethel Baird | 51 | Wife | — | Pennsylvania |
| 13 | Marjorie A. Baird | 12 | Daughter | — | Pennsylvania |
| 14 | Donald A. Baird | 11 | Son | — | Pennsylvania |
| 15 | Richard G. Baird | 9 | Son | — | Pennsylvania |
| 16 | Martha E. Baird | 8 | Daughter | — | Pennsylvania |
| 17 | Charles R. Harding | 40 | Head | Foreman | Pennsylvania |
| 18 | Virginia B. Harding | 37 | Wife | — | Pennsylvania |
| 19 | Robert C. Harding | 15 | Son | — | Pennsylvania |
| 20 | Myron G. Harding | 8 | Son | — | Pennsylvania |
| 21 | Charles H. Church | 54 | Head | Electric Welder | Pennsylvania |
| 22 | Mabel H. Church | 44 | Wife | — | Pennsylvania |
| 23 | Charles H. Jr. Church | 24 | Son | Electric Utility | Pennsylvania |
| 24 | Gaylord W. Church | 22 | Son | Shipping Clerk | Pennsylvania |
| 25 | Warren C. Church | 18 | Son | — | Pennsylvania |
| 26 | P. C. Gasparini | 44 | Head | Salesman | Italy |
| 27 | Julia Gasparini | 39 | Wife | — | Italy |
| 28 | Thomas Gasparini | 17 | Son | — | New York |
| 29 | Carmela Gasparini | 16 | Daughter | — | New Jersey |
| 30 | Charles Gasparini | 13 | Son | — | New York |
| 31 | Arthur Gasparini | 6 | Son | — | Pennsylvania |
| 32 | John R. Rowan | 45 | Head | Salesman | Pennsylvania |
| 33 | Mary E. Rowan | 38 | Wife | — | Ohio |
| 34 | Earl G. Stone | 52 | Head | Traffic Manager | Ohio |
| 35 | Ella B. Stone | 45 | Wife | — | West Virginia |
| 36 | Richard L. Stone | 29 | Son | Welder | Pennsylvania |
| 37 | Mary C. Stone | 22 | Daughter | Stenographer | Pennsylvania |
| 38 | Ralph A. Stone | 20 | Son | — | Pennsylvania |
| 39 | David B. Stone | 15 | Son | — | Pennsylvania |
| 40 | Robert B. Stone | 6 | Son | — | Pennsylvania |
| 41 | John L. Hudepohl | 61 | Head | Machinist | Pennsylvania |
| 42 | Jennie Hudepohl | 56 | Wife | — | Pennsylvania |
| 43 | Albert Hudepohl | 30 | Son | Mailman | Pennsylvania |
| 44 | Eva Hudepohl | 26 | Daughter | School Teacher | Pennsylvania |
| 45 | Nellie Hudepohl | 24 | Daughter | School Teacher | Pennsylvania |
| 46 | James Hudepohl | 20 | Son | Printer | West Virginia |
| 47 | Wilbur P. Hawthorne | 37 | Head | Salesman | Pennsylvania |
| 48 | Lena B. Hawthorne | 40 | Wife | — | Pennsylvania |
| 49 | Wilbur P. Jr. Hawthorne | 9 | Son | — | Pennsylvania |
| 50 | Frank B. Hawthorne | 8 | Son | — | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)