LS
Louis Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Maricopa-County, Arizona
Our Model Tree links this Louis Smith across the 1930 and 1940 US Censuses in Maricopa-County, Arizona (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 12-person household.
Age 13
b. ~1927
Male
Son
Born: Arizona
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Maricopa-County, Arizona |
| Surname | Smith |
| Given Name | Louis L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | S. D. 3 |
| 1935 Residence (County) | Maricopa |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Township / Ward | S D 3 |
| Est. Birth Year | ~1927 |
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 Louis | Age | Birth yr |
|---|---|---|---|---|
| Ronald Smith | Daughter | — | 11 | ~1929 |
| Ada Smith | Daughter | — | 5 | ~1935 |
| Harriet Smith | Daughter | — | 4 | ~1936 |
| Joy Smith | Daughter | — | 3 | ~1937 |
| James Smith | Son | — | 9 | ~1931 |
| Robert Smith | Son | — | 8 | ~1932 |
| Louis Smith | Son | — | 13 | ~1927 |
| George Smith | Son | — | 17 | ~1923 |
| Harry Smith | Son | — | 4 | ~1936 |
| Alfred Smith | Son | — | 15 | ~1925 |
| Donald Smith | Son | — | 1 | ~1939 |
| Ira Smith | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Maricopa, Arizona
Son, age 3
Maricopa, Arizona · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Louis W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Nebraska |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Maricopa-County, Arizona
Son, age 13
Maricopa-County, Arizona · implied b. ~1927 — 12 household members
| Surname | Smith |
| Given Name | Louis L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | S. D. 3 |
| 1935 Residence (County) | Maricopa |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
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 Louis Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Smith
Son · 1940 · age 13 · b. ~1927 · Arizona
★ You are viewing this record
Sibling
Ada Smith
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Smith
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harriet Smith
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Smith
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Smith
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Smith
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Smith
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Smith
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Smith
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joy Smith
Sibling · 1940 · age 3
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 — Maricopa-County, Arizona
Open full size
1940 US Federal Census — Maricopa-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00109-00260)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ira S Smith | 41 | Wife | — | Nebraska |
| 42 | George E Smith | 17 | Son | — | Arizona |
| 43 | Alfred W Smith | 15 | Son | — | Arizona |
| 44 | Louis L Smith THIS PERSON | 13 | Son | — | Arizona |
| 45 | Ronald L Smith | 11 | Daughter | — | Arizona |
| 46 | James A Smith | 9 | Son | — | Arizona |
| 47 | Robert L Smith | 8 | Son | — | Arizona |
| 48 | Ada M Smith | 5 | Daughter | — | Arizona |
| 49 | Harry J Smith | 4 | Son | — | Arizona |
| 50 | Harriet J Smith | 4 | Daughter | — | Arizona |
| 51 | Joy A Smith | 3 | Daughter | — | Arizona |
| 52 | Donald H Smith | 1 | Son | — | Arizona |
| 53 | David M Brown | 42 | Head | Farmer | Arizona |
| 54 | Cuba Brown | 37 | Wife | — | Texas |
| 55 | Mary A Brown | 18 | Daughter | — | New Mexico |
| 56 | Harlan J Brown | 4 | Son | — | Arizona |
| 57 | T. B. Kelley | 48 | Head | Farmer | Missouri |
| 58 | Annabella R Kelley | 39 | Wife | — | Texas |
| 59 | Helene Kelley | 19 | Daughter | — | Arizona |
| 60 | Archie Kelley | 18 | Son | New Worker | Arizona |
| 61 | Jessie M Kelley | 16 | Daughter | — | Arizona |
| 62 | Katherine Kelley | 15 | Daughter | — | Arizona |
| 63 | Raymond Kelley | 13 | Son | — | Arizona |
| 64 | Ernest Kelley | 9 | Son | — | Arizona |
| 65 | Clarence Kelley | 7 | Son | — | Arizona |
| 66 | Clyde Kelley | 5 | Son | — | Arizona |
| 67 | Ester Kelley | 1 | Daughter | — | Arizona |
| 68 | Lester Kelley | 1 | Son | — | Arizona |
| 69 | Charles H Good | 21 | Head | Laborer | Oklahoma |
| 70 | Helen F Good | 21 | Wife | — | Oklahoma |
| 71 | Harry J Good | 3 | Son | — | Arizona |
| 72 | John D Calhoun | 49 | Head | Bookkeeper | Arkansas |
| 73 | Bertha Calhoun | 48 | Wife | — | Missouri |
| 74 | John D Calhoun | 21 | Son | — | Arizona |
| 75 | Robert S Calhoun | 19 | Son | — | Arizona |
| 76 | Verna L Calhoun | 15 | Daughter | — | Arizona |
| 77 | Fay N Calhoun | 9 | Daughter | — | Arizona |
| 78 | John F Center | 83 | Head | Farmer | Kentucky |
| 79 | Teodoro Lopez | 34 | Head | Laborer | Mexico |
| 80 | Jesus Lopez | 32 | Wife | — | Mexico |
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)