DK
David King — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this David King across the 1920, 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents David — first a son (b.~1909), then head of a 6-person household.
Age 21
b. ~1909
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | King |
| Given Name | David R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Salesman |
| Industry | Men's Furnishings |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Salesman |
| Township / Ward | City Pittsburgh |
| 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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to David | Age | Birth yr |
|---|---|---|---|---|
| Emily Kovatsak | Other | — | 29 | ~1901 |
| Mellard Brown | Other | — | 26 | ~1904 |
| David King | Son | — | 21 | ~1909 |
| Katherine King | Other | — | 46 | ~1884 |
| Elizabeth King | Daughter | — | 22 | ~1908 |
| David King | Head | — | 53 | ~1877 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 10
Allegheny, Pennsylvania · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | David |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| 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
Son, age 21
Allegheny, Pennsylvania · implied b. ~1909 — 6 household members
| Surname | King |
| Given Name | David R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Salesman |
| Industry | Men's Furnishings |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 30
Allegheny-County, Pennsylvania · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Daniel H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | East McKeesport |
| 1935 Residence (County) | Allegheny |
| Occupation | Molder |
| Industry | Electrical shop |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | H-4 |
| 1935 Residence | Pennsylvania |
| 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 David King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father David King (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
David King
b. ~1878
Source father
● Household
· direct · ~0.92
This person
Anchor record
David King
Son · 1930 · age 21 · b. ~1909 · Pennsylvania
★ You are viewing this record
Sibling
Elizabeth King
Sibling · 1930 · age 22
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
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
29 people indexed on this census page (ia:1930:fifteenthcensus00reel1975:0143)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harry N. Diepenbrock | 74 | Head | Retired | Pennsylvania |
| 2 | Henrietta Diepenbrock | 69 | Wife-H | — | Pennsylvania |
| 3 | Harriet M. Diepenbrock | 34 | Daughter | — | Pennsylvania |
| 4 | Mary Ezdek | 18 | — | Servant | New Jersey |
| 5 | Daniel Brody | 49 | — | Chauffeur | Virginia |
| 6 | Saml. J. Opperman | 60 | Head | — | Pennsylvania |
| 7 | Marie F. Opperman | 32 | Daughter | — | Pennsylvania |
| 8 | Mary Kelly | 54 | — | Cook | Pennsylvania |
| 9 | Albert Duke | 45 | — | Chauffeur | Georgia |
| 10 | Robert Harris | 30 | — | Butler | Virginia |
| 11 | Curtis C. Mechling | 53 | Head | Physician | Pennsylvania |
| 12 | Anne M. Mechling | 48 | Wife-H | — | Pennsylvania |
| 13 | Elizabeth Mechling | 17 | Daughter | — | Pennsylvania |
| 14 | Robert Mechling | 13 | Son | — | Pennsylvania |
| 15 | Albert Hirsch | 37 | Head | Attorney | Pennsylvania |
| 16 | Marie Hirsch | 32 | Wife-H | — | Pennsylvania |
| 17 | Paul Hirsch | 15 | Son | — | Pennsylvania |
| 18 | Hilda Hirsch | 11 | Daughter | — | Pennsylvania |
| 19 | Mary E. Hirsch | 10 | Daughter | — | Pennsylvania |
| 20 | Mary Lepko | 24 | — | Servant | Pennsylvania |
| 21 | David W. King | 53 | Head | Manager | Pennsylvania |
| 22 | Katherine B. King | 46 | Wife-H | — | Pennsylvania |
| 23 | David R. King THIS PERSON | 21 | Son | Salesman | Pennsylvania |
| 24 | Elizabeth King | 22 | Daughter | — | Pennsylvania |
| 25 | Emily Kovatsak | 29 | — | Servant | Pennsylvania |
| 26 | Mellard Brown | 26 | — | Chauffeur | Virginia |
| 27 | Clarence L. Craig | 47 | Head | Broker | Pennsylvania |
| 28 | Flora A. Craig | 42 | Wife-H | — | Pennsylvania |
| 29 | Robert A. Craig | 16 | Son | — | Pennsylvania |
Pedigree Summary
David + 1 sibling
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
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)