JD
James Dunn — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Lucas, Ohio
Our Model Tree links this James Dunn across the 1930 and 1940 US Censuses in Lucas, Ohio (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 19-person household.
Age 0
b. ~1930
Male
Son
Born: Ohio
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Lucas, Ohio |
| Surname | Dunn |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Toledo City |
| Est. Birth Year | ~1930 |
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.
19 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Dunn | Daughter | — | 2 | ~1928 |
| Mary Dunn | Daughter | — | ~1930 | |
| Thomas Dunn | Head | — | 35 | ~1895 |
| Daughter Alice | Other | — | ~1930 | |
| Daughter Catherine | Other | — | ~1930 | |
| Daughter Florence | Other | — | ~1930 | |
| Daughter Sarah | Other | — | ~1930 | |
| Daughter Gertrude | Other | — | ~1930 | |
| Robert Dunn | Son | — | 6 | ~1924 |
| George Dunn | Son | — | ~1930 | |
| William Dunn | Son | — | ~1930 | |
| James Dunn | Son | — | ~1930 | |
| Thomas Dunn | Son | — | 8 | ~1922 |
| Joseph Dunn | Son | — | ~1930 | |
| John Dunn | Son | — | ~1930 | |
| Charles Dunn | Son | — | ~1930 | |
| Richard Dunn | Son | — | 4 | ~1926 |
| Edward Dunn | Son | — | ~1930 | |
| Lillian Dunn | Spouse | — | 30 | ~1900 |
Census Appearances
1930
Lucas, Ohio
Son, age
Lucas, Ohio · implied b. ~1930 — 19 household members
| Surname | Dunn |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
Son, age 10
Lucas-County, Ohio · implied b. ~1930 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield Township |
| 1935 Residence (County) | Lucas |
| Highest Grade | 3 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 James Dunn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Dunn
Son · 1930 · age 0 · b. ~1930 · Ohio
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Sibling
Richard Dunn
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Dunn
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Dunn
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Dunn
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Dunn
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Dunn
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Dunn
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Dunn
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Dunn
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Dunn
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Dunn
Sibling · 1930 · age
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 — Lucas, Ohio
Open full size
1930 US Federal Census — Lucas, Ohio
Page Contents
50 people indexed on this census page (ia:1930:ohiocensus00reel1836:0551)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Aloysius J. Troeffel | 31 | Head | Salesman | Ohio |
| 2 | Ethel M. Troeffel | 23 | Wife | — | Ohio |
| 3 | Marguerite Troeffel | 1 | Daughter | — | Ohio |
| 4 | Aloysius J. Troeffel | 0 | Son | — | Ohio |
| 5 | Patrick Yalman | 30 | Head | — | Ohio |
| 6 | Sadie Yalman | 28 | Wife | Saleslady | Ohio |
| 7 | Elmer J. Miller | 32 | Head | Salesman | Ohio |
| 8 | Lillian Miller | 30 | Wife | — | Ohio |
| 9 | Elmer J. Jr. Miller | 8 | Son | — | Ohio |
| 10 | Robert Miller | 6 | Son | — | Ohio |
| 11 | Richard Miller | 4 | Son | — | Ohio |
| 12 | Howard L. Burdick | 32 | Head | Salesman | Ohio |
| 13 | Lillian Burdick | 30 | Wife | — | Ohio |
| 14 | Howard L. Jr. Burdick | 8 | Son | — | Ohio |
| 15 | Dorothy Burdick | 6 | Daughter | — | Ohio |
| 16 | Robert Burdick | 4 | Son | — | Ohio |
| 17 | Nelson E. Webb | 35 | Head | Salesman | Ohio |
| 18 | Lillian Webb | 30 | Wife | — | Ohio |
| 19 | Nelson E. Jr. Webb | 8 | Son | — | Ohio |
| 20 | Robert Webb | 6 | Son | — | Ohio |
| 21 | James O'Neil | 35 | Head | Salesman | Ohio |
| 22 | Lillian O'Neil | 30 | Wife | — | Ohio |
| 23 | James Jr. O'Neil | 8 | Son | — | Ohio |
| 24 | Albert Ulrich | 35 | Head | Salesman | Ohio |
| 25 | Mary J. Ulrich | 30 | Wife | — | Ohio |
| 26 | Albert Jr. Ulrich | 8 | Son | — | Ohio |
| 27 | Thomas Dunn | 35 | Head | Salesman | Ohio |
| 28 | Lillian Dunn | 30 | Wife | — | Ohio |
| 29 | Thomas Jr. Dunn | 8 | Son | — | Ohio |
| 30 | Robert Dunn | 6 | Son | — | Ohio |
| 31 | Richard Dunn | 4 | Son | — | Ohio |
| 32 | Dorothy Dunn | 2 | Daughter | — | Ohio |
| 33 | Mary Dunn | 0 | Daughter | — | Ohio |
| 34 | James Dunn THIS PERSON | 0 | Son | — | Ohio |
| 35 | William Dunn | 0 | Son | — | Ohio |
| 36 | John Dunn | 0 | Son | — | Ohio |
| 37 | Joseph Dunn | 0 | Son | — | Ohio |
| 38 | Edward Dunn | 0 | Son | — | Ohio |
| 39 | Charles Dunn | 0 | Son | — | Ohio |
| 40 | George Dunn | 0 | Son | — | Ohio |
| 41 | Daughter Gertrude | 0 | — | — | Ohio |
| 42 | Daughter Alice | 0 | — | — | Ohio |
| 43 | Daughter Catherine | 0 | — | — | Ohio |
| 44 | Daughter Florence | 0 | — | — | Ohio |
| 45 | Daughter Sarah | 0 | — | — | Ohio |
| 46 | August Miller | 65 | Head | Carpenter | Germany |
| 47 | Lillian Miller | 60 | Wife | — | Ohio |
| 48 | August Jr. Miller | 30 | Son | — | Ohio |
| 49 | Betty Miller | 25 | Daughter | — | Ohio |
| 50 | John Miller | 20 | Son | — | Ohio |
Related Census Records
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)