RS
Roland Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lucas-County, Ohio
Our Model Tree links this Roland Smith across the 1930 and 1940 US Censuses in Lucas-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Ohio |
| Surname | Smith |
| Given Name | Roland |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo |
| 1935 Residence (County) | Lucas |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Toledo |
| Est. Birth Year | ~1929 |
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 1940 census.
| Name | Relation to head | Relative to Roland | Age | Birth yr |
|---|---|---|---|---|
| Mildred Smith | Daughter | — | 16 | ~1924 |
| Fredrick Smith | Son | — | 9 | ~1931 |
| Aloysius Smith | Son | — | 10 | ~1930 |
| Roland Smith | Son | — | 11 | ~1929 |
| Gertrude Smith | Daughter | — | 27 | ~1913 |
| Mary Smith | Spouse | — | 49 | ~1891 |
| Katherine Smith | Daughter | — | 19 | ~1921 |
Census Appearances
1930
Lucas, Ohio
Other, age 1
Lucas, Ohio · implied b. ~1929 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Rolland E. |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| 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 11
Lucas-County, Ohio · implied b. ~1929 — 7 household members
| Surname | Smith |
| Given Name | Roland |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Toledo |
| 1935 Residence (County) | Lucas |
| Highest Grade | No 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 Roland Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Roland Smith
Son · 1940 · age 11 · b. ~1929 · Ohio
★ You are viewing this record
Sibling
Aloysius Smith
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fredrick Smith
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Smith
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Smith
Sibling · 1940 · age 27
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-t0627-03258-00236)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Smith | 49 | Wife | — | Ohio |
| 42 | Gertrude Smith | 27 | Daughter | Assembler | Ohio |
| 43 | Katherine Smith | 19 | Daughter | Servant | Ohio |
| 44 | Mildred Smith | 16 | Daughter | — | Ohio |
| 45 | Roland Smith THIS PERSON | 11 | Son | — | Ohio |
| 46 | Aloysius Smith | 10 | Son | — | Ohio |
| 47 | Fredrick Smith | 9 | Son | — | Ohio |
| 48 | Joseph Haring | 53 | Head | Barber | Indiana |
| 49 | Katherine Haring | 53 | Wife | — | Michigan |
| 50 | Leo Walker | 29 | Head | Bookkeeper | Ohio |
| 51 | Crystal Walker | 27 | Wife | — | Ohio |
| 52 | Jessie Finn | 70 | Head | — | England |
| 53 | Theodore Ott | 70 | Lodger | — | Germany |
| 54 | Edward Jordan | 62 | Head | Card Writer | Michigan |
| 55 | Cora Jordan | 54 | Wife | — | Ohio |
| 56 | William Blessing | 44 | Head | — | Ohio |
| 57 | Lucille Blessing | 25 | Daughter | — | Ohio |
| 58 | Carl Blessing | 18 | Son | Bangle Hand | Ohio |
| 59 | Richard Blessing | 16 | Son | — | Ohio |
| 60 | Alice Blessing | 14 | Daughter | — | Ohio |
| 61 | William Blessing | 13 | Son | — | Ohio |
| 62 | Frank Eaglin | 44 | Head | Spray Painter | Illinois |
| 63 | Winifred Eaglin | 40 | Wife | — | Michigan |
| 64 | Robert Eaglin | 17 | Son | Clerk | Ohio |
| 65 | Jack Eaglin | 14 | Son | — | Ohio |
| 66 | Antonie Leis | 67 | Head | Labor | Germany |
| 67 | Fredricka Leis | 72 | Wife | — | Germany |
| 68 | Charles Houghtell | 24 | Head | Sheet Metal Worker | Ohio |
| 69 | Ann Houghtell | 21 | Wife | — | Ohio |
| 70 | August Grandpair | 34 | Head | Roofer | Germany |
| 71 | Edna Grandpair | 32 | Wife | — | Ohio |
| 72 | Kathleen Grandpair | 9 | Daughter | — | Ohio |
| 73 | Betty Grandpair | 6 | Daughter | — | Ohio |
| 74 | Loraine Grandpair | 3 | Daughter | — | Ohio |
| 75 | Dale Winn | 31 | Head | Auto Worker | Michigan |
| 76 | Ann Winn | 23 | Wife | Auto Worker | Indiana |
| 77 | George Winn | 9 | Son | — | Michigan |
| 78 | Lee Monte | 25 | Lodger | Repair Man | Ohio |
| 79 | Mary Monte | 25 | Lodger-wife | Servant | Ohio |
| 80 | Louis Schwartz | 53 | Head | Plaster | Rumania |
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)