AS
Allen Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Fairfield-County, Ohio
Our Model Tree links this Allen Smith across the 1920, 1930 and 1940 US Censuses in Fairfield-County, Ohio (XGBoost, ~Confirmed), with identified parents Mertie & Mattie — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Fairfield-County, Ohio |
| Surname | Smith |
| Given Name | Allen O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lancaster City |
| 1935 Residence (County) | Fairfield |
| Additional Details | |
| Occupation | Lineman |
| Industry | Ohio Power Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Lineman |
| Township / Ward | Lancaster 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Allen | Age | Birth yr |
|---|---|---|---|---|
| Ollie Smith | Head | — | 46 | ~1894 |
| Allen Smith | Son | — | 22 | ~1918 |
| Robert Smith | Son | — | 20 | ~1920 |
| Mattie Smith | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Fairfield, Ohio
Son, age 2
Fairfield, Ohio · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Allen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Fairfield, Ohio
Son, age 11
Fairfield, Ohio · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Allen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Fairfield-County, Ohio
Son, age 22
Fairfield-County, Ohio · implied b. ~1918 — 4 household members
| Surname | Smith |
| Given Name | Allen O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Lancaster City |
| 1935 Residence (County) | Fairfield |
| Occupation | Lineman |
| Industry | Ohio Power Co. |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 900 |
| Highest Grade | H-4 |
| 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 Allen Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mertie Smith (~0.92 confidence) and mother Mattie Smith (~0.92 confidence) and mother Mattie Smith (~0.92 confidence) and father Olin Smith (~0.92 confidence) and father Ollie Smith (~0.92 confidence) and father Ollie Smith (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mertie Smith
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mattie Smith
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Mattie Smith
b. ~1892
Source mother
● Household
· direct · ~0.92
Father
Olin Smith
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Ollie Smith
b. ~1894
Source father
● Household
· direct · ~0.92
Father
Ollie Smith
b. ~1894
Source father
● Household
· direct · ~0.92
This person
Anchor record
Allen Smith
Son · 1940 · age 22 · b. ~1918 · Ohio
★ You are viewing this record
Sibling
Robert Smith
Sibling · 1940 · age 20
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 — Fairfield-County, Ohio
Open full size
1940 US Federal Census — Fairfield-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03066-00153)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ross D. Kratz | 26 | Wife | House Keeper | Ohio |
| 2 | Betty Elaine Kratz | 8 | Daughter | — | Ohio |
| 3 | Arden J. Kratz | 5 | Son | — | Ohio |
| 4 | Alex Kratz | 28 | Brother | Dealer | Poland |
| 5 | Fountain Andrews | 32 | Head | Mail Maker | Ohio |
| 6 | Mildred R. Andrews | 30 | Wife | House Keeper | Ohio |
| 7 | Patricia J. Andrews | 11 | Daughter | — | Ohio |
| 8 | James E. Andrews | 9 | Son | — | Ohio |
| 9 | John W. Andrews | 3 | Son | — | Ohio |
| 10 | William S. Sims | 75 | Head | Dealer | Ohio |
| 11 | Pearl Sims | 69 | Wife | House Keeper | Ohio |
| 12 | John W. Clawson | 29 | Head | Trackman | Ohio |
| 13 | Faye L. Clawson | 27 | Wife | Glass Worker | W. Virginia |
| 14 | Ruth Birch | 22 | Lodger | Glass Worker | Ohio |
| 15 | Lloyd H. Crook | 27 | Head | Laborer | Ohio |
| 16 | Edith L. Crook | 23 | Wife | Factory Worker | Ohio |
| 17 | Here Ends Crook | 100 | Block 406 and | — | — |
| 18 | Paul Eckerle | 52 | Head | Machinist | Ohio |
| 19 | Mildred Eckerle | 52 | Wife | House Keeper | Indiana |
| 20 | Waldo H. Masters | 33 | Head | Supt. | Ohio |
| 21 | Frances M. Masters | 31 | Wife | House Keeper | Ohio |
| 22 | Gloria J. Masters | 5 | Daughter | — | Ohio |
| 23 | Earl W. Snyder | 34 | Head | Truck Driver | Ohio |
| 24 | Evelyn C. Snyder | 33 | Wife | House Keeper | Ohio |
| 25 | Clifford B. Belt | 42 | Head | Truck Driver | Ohio |
| 26 | Mabel G. Belt | 40 | Wife | House Keeper | Ohio |
| 27 | Clarence W. Young | 42 | Head | Mechanic | Ohio |
| 28 | Constance Young | 39 | Wife | House Keeper | Colorado |
| 29 | John E. Young | 12 | Son | — | Ohio |
| 30 | Caroline Anne Young | 7 | daughter | — | Ohio |
| 31 | Ollie Smith | 46 | Head | Mail Carrier | Ohio |
| 32 | Mattie Smith | 50 | Wife | House Keeper | Ohio |
| 33 | Allen O. Smith THIS PERSON | 22 | Son | Lineman | Ohio |
| 34 | Robert C. Smith | 20 | Son | Laborer | Ohio |
| 35 | Roy L. Woltz | 38 | Head | Carpenter | Ohio |
| 36 | Elmyra Woltz | 38 | Wife | House Keeper | Ohio |
| 37 | Charles J. Woltz | 4 | Son | — | Ohio |
| 38 | Ronald L. Woltz | 2 | Son | — | Ohio |
| 39 | Russel Baker | 38 | Head | Agent | Ohio |
| 40 | Gladys Baker | 39 | Wife | House Keeper | Ohio |
Pedigree Summary
Allen + 1 sibling
Gen 1 · 6 parents
~0.92
Max depth 4 (1900–1950 window)
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)