MD
Mary Duke — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Duke across the 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1857), then head of a 7-person household.
Age 73
b. ~1857
Female
Head
Born: Pennsylvania
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Duke |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Elizabeth Boro |
| Est. Birth Year | ~1857 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Duke | Head | — | 73 | ~1857 |
| Nellie Duke | Daughter | — | 38 | ~1892 |
| George Duke | Son | — | 47 | ~1883 |
| Edward Kemp | Other | — | 39 | ~1891 |
| Mary Moussa | Other | — | 18 | ~1912 |
| John Duke | Son | — | 42 | ~1888 |
| Lena Kemp | Daughter | — | 31 | ~1899 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 63
Allegheny, Pennsylvania · implied b. ~1857
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Duke |
| Given Name | Mary |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| Father's Birthplace | France |
| Mother's Birthplace | Unknown |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | French |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 73
Allegheny, Pennsylvania · implied b. ~1857 — 7 household members
| Surname | Duke |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Pennsylvania |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| 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 Duke across 2 US Census years (1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage.
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This person
Anchor record
Mary Duke
Head · 1930 · age 73 · b. ~1857 · 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:fifteenthcensus00reel1963:0571)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Helen Shoaf | 28 | Head | — | Pennsylvania |
| 52 | William Shoaf | 8 | Son | — | Pennsylvania |
| 53 | Marjorie Shoaf | 6 | Daughter | — | Pennsylvania |
| 54 | Mary Belle Shoaf | 4 | Daughter | — | Pennsylvania |
| 55 | Edward Painter | 52 | Head | Deck Hand | Pennsylvania |
| 56 | Robert M. Painter | 62 | Brother | Deck Hand | Pennsylvania |
| 57 | Theresa Painter | 65 | Sister | — | Pennsylvania |
| 58 | Edgar A. Thomas | 45 | Head | Civil Engineer | Pennsylvania |
| 59 | Harriet B. Thomas | 33 | Wife | — | Pennsylvania |
| 60 | Charles Hynchelday | 44 | Head | Teacher | Pennsylvania |
| 61 | Alice Hynchelday | 44 | Sister | — | Pennsylvania |
| 62 | Walter M. Hynchelday | 35 | Brother | Laborer | Pennsylvania |
| 63 | John M. Hynchelday | 25 | Brother | Laborer | Pennsylvania |
| 64 | William Aster | 64 | Uncle | — | Pennsylvania |
| 65 | Grace Shaw | 12 | Niece | — | Pennsylvania |
| 66 | Merrick Blankenbuehler | 67 | Head | — | Pennsylvania |
| 67 | R. E. Blankenbuehler | 45 | Son | Real Estate | Pennsylvania |
| 68 | Rendo Moussa | 26 | Head | Calker | Italy |
| 69 | Helen Moussa | 25 | Wife | — | Pennsylvania |
| 70 | Robert Moussa | 2 | Son | — | Pennsylvania |
| 71 | George Moussa | 1 | Son | — | Pennsylvania |
| 72 | Jos. Bernosky | 26 | Head | Machinist | Pennsylvania |
| 73 | Sophia Bernosky | 26 | Wife | — | Pennsylvania |
| 74 | Jules Delignit | 54 | Head | Carpenter | France |
| 75 | Alice Delignit | 38 | Wife | — | France |
| 76 | Dorothy L. Delignit | 22 | Daughter | — | Pennsylvania |
| 77 | Regis Delignit | 12 | Nephew | — | Pennsylvania |
| 78 | William Pancoast | 57 | Head | Carpenter | Pennsylvania |
| 79 | Belle Pancoast | 58 | Wife | — | Pennsylvania |
| 80 | Martin Patrick | 38 | Boarder | Hauling | Austria |
| 81 | R. B. Mckinney | 78 | Head | Laborer | Pennsylvania |
| 82 | Florence M. Mckinney | 74 | Wife | — | Pennsylvania |
| 83 | Alfred R. Fisher | 50 | Son-in-law | Merchant | West Virginia |
| 84 | Lillian Fisher | 48 | Daughter | — | Pennsylvania |
| 85 | Martha Hookin | 23 | Servant | Servant | Pennsylvania |
| 86 | Mary Duke THIS PERSON | 73 | Head | — | Pennsylvania |
| 87 | George J. Duke | 47 | Son | Agent | Pennsylvania |
| 88 | John B. Duke | 42 | Son | Carpenter | Pennsylvania |
| 89 | Nellie K. Duke | 38 | Daughter | Teacher | Pennsylvania |
| 90 | Lena Kemp | 31 | Daughter | — | Pennsylvania |
| 91 | Edward Kemp | 39 | Son-in-law | Operator | Pennsylvania |
| 92 | Mary Moussa | 18 | Servant | Servant | Pennsylvania |
| 93 | Jos. Mcdermott | 50 | Head | Laborer | Italy |
| 94 | John Thomas | 33 | Head | Carpenter | Pennsylvania |
| 95 | Nancy B. Thomas | 32 | Wife | — | Pennsylvania |
| 96 | Rosanne Thomas | 9 | Daughter | — | Pennsylvania |
| 97 | Angela Thomas | 7 | Daughter | — | Pennsylvania |
| 98 | Wm. M. Lynch | 36 | Head | Carpenter | Pennsylvania |
| 99 | Alice Lynch | 32 | Wife | Teacher | Pennsylvania |
| 100 | R. Louis Lynch | 11 | Daughter | — | 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)