IT
Ida Thompson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Knox, Illinois
Our Model Tree links this Ida Thompson across the 1920, 1930 and 1940 US Censuses in Knox, Illinois (XGBoost, ~Confirmed) — first a head (b.~1867), then head of a 4-person household.
Age 63
b. ~1867
Female
Head
Born: Sweden
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Knox, Illinois |
| Surname | Thompson |
| Given Name | Ida F |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1870 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Home Value / Rent | 7 |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Farmer |
| Township / Ward | Henderson Township |
| Est. Birth Year | ~1867 |
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 1930 census.
| Name | Relation to head | Relative to Ida | Age | Birth yr |
|---|---|---|---|---|
| Lucille Thompson | Daughter | — | 25 | ~1905 |
| Ida Thompson | Head | — | 63 | ~1867 |
| Dave Baxter | Other | — | 40 | ~1890 |
| Robert Thompson | Son | — | 30 | ~1900 |
Census Appearances
1920
Knox, Illinois
Spouse, age 53
Knox, Illinois · implied b. ~1867 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Sweden |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1930
Knox, Illinois
Head, age 63
Knox, Illinois · implied b. ~1867 — 4 household members
| Surname | Thompson |
| Given Name | Ida F |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1870 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Home Value / Rent | 7 |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Knox-County, Illinois
Other, age 73
Knox-County, Illinois · implied b. ~1867 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ida |
| Relationship to Head | Mother |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Widowed |
| Birthplace | Sweden |
| 1935 Residence (City) | Henderson Twp. |
| 1935 Residence (County) | Knox |
| Naturalization Status | Naturalized |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Ida Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ida Thompson
Head · 1930 · age 63 · b. ~1867 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Knox, Illinois
Open full size
1930 US Federal Census — Knox, Illinois
Page Contents
37 people indexed on this census page (ia:1930:illinoiscensus00reel527:0835)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ida F Thompson THIS PERSON | 63 | Head | Farmer | Sweden |
| 2 | Robert E Thompson | 30 | Son | Laborer | Illinois |
| 3 | Lucille D Thompson | 25 | Daughter | Teacher | Illinois |
| 4 | Dave Baxter | 40 | Boarder | Laborer | Iowa |
| 5 | Clyde A Sherman | 36 | Head | Farmer | Illinois |
| 6 | Maude L Sherman | 25 | Wife | — | Illinois |
| 7 | Robert E Sherman | 5 | Son | — | Illinois |
| 8 | Bertha J Sherman | 1 | Daughter | — | Illinois |
| 9 | John W Peterson | 52 | Head | Farmer | Illinois |
| 10 | Dorris G Peterson | 51 | Wife | — | Illinois |
| 11 | Frank A Peterson | 54 | Brother | Gardner | Illinois |
| 12 | Samuel Olson | 17 | Nephew | — | Illinois |
| 13 | Ella M Coffey | 37 | Head | — | Illinois |
| 14 | Elmer F Anderson | 35 | Head | Farmer | Illinois |
| 15 | Mattie L Anderson | 32 | Wife | — | Illinois |
| 16 | Dale E Anderson | 7 | Son | — | Illinois |
| 17 | Marilyn J Anderson | 6 | Daughter | — | Illinois |
| 18 | Dorothy L Anderson | 2 | Daughter | — | Illinois |
| 19 | Charles E Anderson | 75 | Father | — | Sweden |
| 20 | Hanna Anderson | 67 | Mother | — | Sweden |
| 21 | Francis H Setterdahl | 22 | Boarder | Laborer | Illinois |
| 22 | Cornelius L Coffey | 58 | Head | Farmer | Illinois |
| 23 | Margaret Coffey | 47 | Wife | — | Illinois |
| 24 | Phillip E Coffey | 24 | Son | Laborer | Illinois |
| 25 | John W Coffey | 9 | Son | — | Illinois |
| 26 | Margaret L Coffey | 5 | Daughter | — | Illinois |
| 27 | Kathryn T Coffey | 5 | Daughter | — | Illinois |
| 28 | John T Shea | 47 | Nephew | Laborer | Illinois |
| 29 | Earl H Shay | 39 | Head | Farmer | Nebraska |
| 30 | Eva H Shay | 34 | Wife | — | Illinois |
| 31 | Anna W Shay | 9 | Daughter | — | Illinois |
| 32 | Earl J Shay | 7 | Son | — | Illinois |
| 33 | Louise E Shay | 6 | Daughter | — | Illinois |
| 34 | Kathryn I Shay | 4 | Daughter | — | Illinois |
| 35 | Morris A Heimer | 29 | Head | Farmer | Virginia |
| 36 | Allie H Heimer | 56 | Wife | — | Missouri |
| 37 | John Doyle | 40 | Boarder | Machinist | Illinois |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)