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James Dennis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this James Dennis across the 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 5-person household.
Age 10
b. ~1930
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| 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 |
| Additional Details | |
| Highest Grade | 3 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Springfield Township |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Donald Dennis | Son | — | 13 | ~1927 |
| Bernard Dennis | Son | — | 6 | ~1934 |
| James Dennis | Son | — | 10 | ~1930 |
| Margaret Dennis | Spouse | — | 45 | ~1895 |
| Charles Dennis | Head | — | 47 | ~1893 |
Census Appearances
Son, age
Lucas, Ohio · implied b. ~1930 — 19 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| 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 |
1940
Lucas-County, Ohio
Son, age 10
Lucas-County, Ohio · implied b. ~1930 — 5 household members
| 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 Dennis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Dennis
Son · 1940 · age 10 · b. ~1930 · Ohio
★ You are viewing this record
Sibling
Bernard Dennis
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Dennis
Sibling · 1940 · age 13
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
1940 US Federal Census — Lucas-County, Ohio
Open full size
1940 US Federal Census — Lucas-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03105-00800)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Phyllis Freese | 17 | daughter | None | Ohio |
| 2 | Leo O Dennis | 75 | head | Farmer | Ohio |
| 3 | Mary Dennis | 81 | mother | — | Ohio |
| 4 | Charles Dennis | 47 | head | Farmer | Ohio |
| 5 | Margaret Dennis | 45 | wife | — | Ohio |
| 6 | Donald Dennis | 13 | son | — | Ohio |
| 7 | James Dennis THIS PERSON | 10 | son | — | Ohio |
| 8 | Bernard Dennis | 6 | son | — | Ohio |
| 9 | Fred A Lumbryer | 36 | head | Farmer | Ohio |
| 10 | Norma Lumbryer | 33 | wife | — | Ohio |
| 11 | Betty Jane Lumbryer | 12 | daughter | — | Ohio |
| 12 | Walter R Lumbryer | 8 | son | — | Ohio |
| 13 | Owen Wilder | 25 | head | Machinist | Ohio |
| 14 | Grace E Wilder | 26 | wife | — | Ohio |
| 15 | Harold Wilder | 1 | son | — | Ohio |
| 16 | Joseph Martin | 44 | head | Farm Hand | Indiana |
| 17 | Lorena Martin | 41 | wife | — | Indiana |
| 18 | Wallace Manley | 46 | head | Farmer | Ohio |
| 19 | Ruby S Manley | 44 | wife | — | Ohio |
| 20 | Myrtle Manley | 10 | daughter | — | Ohio |
| 21 | Russell Wilder | 21 | step-son | Farmer | Ohio |
| 22 | Opal Wilder | 19 | step-daughter | — | Ohio |
| 23 | Dorothy Wilder | 18 | step-daughter | — | Ohio |
| 24 | Glen Durfee | 22 | farm hand | Farm Hand | Ohio |
| 25 | Oscar Christel | 55 | head | Farmer | Ohio |
| 26 | Emma Christel | 49 | wife | — | Ohio |
| 27 | Richard Christel | 23 | son | Laborer | Ohio |
| 28 | Marvin Christel | 20 | son | Taxi Driver | Ohio |
| 29 | Jane Christel | 18 | daughter-in-law | — | Ohio |
| 30 | Marvin L Christel | 1 | grandson | — | Ohio |
| 31 | Frank Hoen | 53 | head | Farmer | Ohio |
| 32 | Josephine Hoen | 48 | wife | — | Ohio |
| 33 | Francis Hoen | 26 | son | Laborer | Ohio |
| 34 | William Hoen | 21 | son | Laborer | Ohio |
| 35 | Leo Hoen | 19 | son | Laborer | Ohio |
| 36 | Leola A Hoen | 19 | daughter | Housework | Ohio |
| 37 | Frederick Dennis | 56 | head | Farmer | Ohio |
| 38 | Elizabeth Dennis | 49 | wife | — | Ohio |
| 39 | Arthur Dennis | 21 | son | Farmer | Ohio |
| 40 | Harold Dennis | 17 | son | None | Ohio |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)