AT
Arthur Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macoupin-County, Illinois
Our Model Tree links this Arthur Thompson across the 1920, 1930 and 1940 US Censuses in Macoupin-County, Illinois (XGBoost, ~Confirmed), with identified parents Parker & Gordon — first a son (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Macoupin-County, Illinois |
| Surname | Thompson |
| Given Name | Arthur |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (County) | Macoupin |
| Additional Details | |
| Occupation | 70 |
| Industry | Farmer |
| Class of Worker | Farm |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | 70 |
| Township / Ward | Polk Township |
| Est. Birth Year | ~1917 |
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 Arthur | Age | Birth yr |
|---|---|---|---|---|
| Parker Thompson | Head | — | 55 | ~1885 |
| Eden Sanders | Other | — | 50 | ~1890 |
| Leonard Thompson | Son | — | 25 | ~1915 |
| Melvin Thompson | Son | — | 20 | ~1920 |
| Arthur Thompson | Son | — | 23 | ~1917 |
| Myron Thompson | Son | — | 20 | ~1920 |
| Emma Thompson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Macoupin, Illinois
Son, age 2
Macoupin, Illinois · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Arthur R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Macoupin, Illinois
Son, age 12
Macoupin, Illinois · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Arthur R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Macoupin-County, Illinois
Son, age 23
Macoupin-County, Illinois · implied b. ~1917 — 7 household members
| Surname | Thompson |
| Given Name | Arthur |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (County) | Macoupin |
| Occupation | 70 |
| Industry | Farmer |
| Class of Worker | Farm |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Arthur Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Parker Thompson (~0.92 confidence) and father Gordon Thompson (~0.92 confidence) and father Parker Thompson (~0.92 confidence) and mother Emma Thompson (~0.92 confidence) and mother Emma Thompson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Parker Thompson
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Gordon Thompson
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Parker Thompson
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Emma Thompson
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Emma Thompson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Arthur Thompson
Son · 1940 · age 23 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Melvin Thompson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Thompson
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Myron Thompson
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 — Macoupin-County, Illinois
Open full size
1940 US Federal Census — Macoupin-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00847-00274)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Patricia Hammond | 4 | daughter | — | Illinois |
| 42 | Shirley Hammond | 1 | daughter | — | Illinois |
| 43 | Bennett Withrow | 51 | head | 80 | Illinois |
| 44 | Nettie Withrow | 51 | wife | — | Illinois |
| 45 | James Withrow | 63 | brother | — | Illinois |
| 46 | Calvin Yahr | 51 | head | 70 | Missouri |
| 47 | Anna Yahr | 52 | wife | — | Missouri |
| 48 | Gene Yahr | 5 | son | — | Illinois |
| 49 | Oneida Yahr | 19 | daughter | — | Illinois |
| 50 | Parker Thompson | 55 | head | — | Illinois |
| 51 | Emma Thompson | 53 | wife | — | Missouri |
| 52 | Leonard Thompson | 25 | son | 70 | Illinois |
| 53 | Arthur Thompson THIS PERSON | 23 | son | 70 | Illinois |
| 54 | Myron Thompson | 20 | son | 80 | Illinois |
| 55 | Melvin Thompson | 20 | son | 70 | Illinois |
| 56 | Eden Sanders | 50 | lodger | — | Missouri |
| 57 | Major Snell | 61 | head | 70 | Illinois |
| 58 | Flora Snell | 62 | wife | — | Illinois |
| 59 | Jesse Sanders | 53 | head | 60 | Illinois |
| 60 | Margaret Sanders | 54 | wife | — | Illinois |
| 61 | Charles Sears | 73 | lodger | — | Illinois |
| 62 | Albert Sanders | 53 | head | 70 | Illinois |
| 63 | Anna Sanders | 28 | wife | — | Kentucky |
| 64 | Mary Wilson | 15 | step-daughter | — | Illinois |
| 65 | Mary Bergman | 43 | head | — | Illinois |
| 66 | Herbert Bergman | 13 | son | — | Illinois |
| 67 | Grace Bergman | 11 | daughter | — | Illinois |
| 68 | Belle Bergman | 5 | daughter | — | Illinois |
| 69 | Ralph Kahl | 30 | head | 22 | Illinois |
| 70 | Emma Kahl | 27 | wife | — | Illinois |
| 71 | Alice Kahl | 8 | daughter | — | Illinois |
| 72 | William Kahl | 6 | son | — | Illinois |
| 73 | Robert Kahl | 5 | son | — | Illinois |
| 74 | Eleanor Kahl | 3 | daughter | — | Illinois |
| 75 | Delbert Kahl | 2 | son | — | Illinois |
| 76 | Elizabeth Kahl | 0 | daughter | — | Illinois |
| 77 | Lawson Taylor | 59 | head | 70 | Illinois |
| 78 | Ida Taylor | 52 | wife | — | Illinois |
| 79 | Lee Crags | 50 | head | 80 | Missouri |
| 80 | Henry Spickerman | 67 | head | 70 | Illinois |
Pedigree Summary
Arthur + 3 siblings
Gen 1 · 5 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)