AS
Allen Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Miami-County, Ohio
Our Model Tree links this Allen Smith across the 1930 and 1940 US Censuses in Miami-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 12-person household.
Age 22
b. ~1918
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Miami-County, Ohio |
| Surname | Smith |
| Given Name | Allen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Piqua city |
| 1935 Residence (County) | Miami |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 624 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Chauffeur |
| Township / Ward | Piqua City |
| Est. Birth Year | ~1918 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Allen | Age | Birth yr |
|---|---|---|---|---|
| Lela Smith | Daughter | — | 10 | ~1930 |
| Clara Smith | Daughter | — | 23 | ~1917 |
| Joane Smith | Daughter | — | 14 | ~1926 |
| Arthur Smith | Head | — | 54 | ~1886 |
| Richard Smith | Son | — | 8 | ~1932 |
| Jackie Smith | Son | — | 7 | ~1933 |
| Herman Smith | Son | — | 21 | ~1919 |
| Patrick Smith | Son | — | 11 | ~1929 |
| William Smith | Son | — | 16 | ~1924 |
| Allen Smith | Son | — | 22 | ~1918 |
| Robert Smith | Son | — | 19 | ~1921 |
| Arthur Smith | Son | — | 13 | ~1927 |
Census Appearances
1930
Miami, Ohio
Son, age 12
Miami, Ohio · implied b. ~1918 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Allen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Miami-County, Ohio
Son, age 22
Miami-County, Ohio · implied b. ~1918 — 12 household members
| Surname | Smith |
| Given Name | Allen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Piqua city |
| 1935 Residence (County) | Miami |
| Occupation | Chauffeur |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 624 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| 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 Allen Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Allen Smith
Son · 1940 · age 22 · b. ~1918 · Ohio
★ You are viewing this record
Sibling
Lela Smith
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Smith
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Smith
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Smith
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herman Smith
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jackie Smith
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Smith
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Smith
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joane Smith
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Smith
Sibling · 1940 · age 11
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 — Miami-County, Ohio
Open full size
1940 US Federal Census — Miami-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03116-00240)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Andrew F Smith | 66 | Husband | — | Ohio |
| 2 | Leonard A Dabur | 36 | Head | Attendant | Ohio |
| 3 | Hannah Dabur | 31 | Wife | Stenographer | Ohio |
| 4 | Louise Limpher | 55 | Head | Seamstress | Indiana |
| 5 | Arthur Smith | 54 | Head | Barber | Canada |
| 6 | Clara G Smith | 23 | Daughter | Servant | Ohio |
| 7 | Allen Smith THIS PERSON | 22 | Son | Chauffeur | Ohio |
| 8 | Herman Smith | 21 | Son | Servant | Ohio |
| 9 | Robert Smith | 19 | Son | Short Order | Ohio |
| 10 | William Smith | 16 | Son | — | Ohio |
| 11 | Joane Smith | 14 | Daughter | — | Ohio |
| 12 | Arthur Jr Smith | 13 | Son | — | Ohio |
| 13 | Patrick Smith | 11 | Son | — | Ohio |
| 14 | Lela May Smith | 10 | Daughter | — | Ohio |
| 15 | Richard Smith | 8 | Son | — | Ohio |
| 16 | Jackie Smith | 7 | Son | — | Ohio |
| 17 | Albert Ryan | 58 | Head | — | Indiana |
| 18 | Erma Ryan | 26 | Wife | Waitress | Ohio |
| 19 | Gertrude Bowdle | 59 | Lodger | Servant | Michigan |
| 20 | Leonard Woodruff | 43 | Head | Polisher | Michigan |
| 21 | Frances Woodruff | 29 | Wife | Stenographer | Ohio |
| 22 | Susan Herrick | 3 | Daughter | — | Ohio |
| 23 | Rosemary Herrick | 1 | Daughter | — | Ohio |
| 24 | Elizabeth Cook | 48 | Head | Servant | Ohio |
| 25 | Bertha Cook | 14 | Daughter | — | Ohio |
| 26 | Sarah J Cook | 12 | Daughter | — | Ohio |
| 27 | Daniel J Cook | 10 | Son | — | Ohio |
| 28 | Elizabeth Phillippi | 27 | Daughter | Trimmer | Ohio |
| 29 | William Phillippi | 26 | Son | Laborer | Ohio |
| 30 | Grace Shilling | 64 | Head | — | Ohio |
| 31 | Mary Millhouse | 37 | Lodger | Twister | Ohio |
| 32 | Paul J Kiefer | 39 | Head | Photographer | Ohio |
| 33 | Louise Kiefer | 29 | Wife | — | Georgia |
| 34 | James Artis | 65 | Head | Barber | Michigan |
| 35 | Myrtle Crues | 49 | Head | Machine Operator | Ohio |
| 36 | Roy M Carter | 42 | Head | Dairy Man | Ohio |
| 37 | Alberta Carter | 41 | Wife | Seamstress | Ohio |
| 38 | Alice Carter | 17 | Daughter | — | Ohio |
| 39 | Henrietta Carter | 15 | Daughter | — | Ohio |
| 40 | Betty Carter | 13 | Daughter | — | Ohio |
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)