JB
John Blair — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Jo Daviess, Illinois
Our Model Tree links this John Blair across the 1920, 1930 and 1940 US Censuses in Jo Daviess, Illinois (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 8-person household.
Age 42
b. ~1888
Male
Head
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Jo Daviess, Illinois |
| Surname | Blair |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 30 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 53 |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Stockton Township |
| Est. Birth Year | ~1888 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Thelma Blair | Daughter | — | 5 | ~1925 |
| Arline Blair | Daughter | — | 3 | ~1927 |
| Viola Blair | Daughter | — | 2 | ~1928 |
| John Blair | Head | — | 42 | ~1888 |
| Thomas Blair | Son | — | 6 | ~1924 |
| Clyde Blair | Son | — | 8 | ~1922 |
| Alfred Blair | Son | — | 9 | ~1921 |
| Lena Blair | Spouse | — | 33 | ~1897 |
Census Appearances
1920
Jo Daviess, …
Head, age 32
Jo Daviess, Illinois · implied b. ~1888 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Germany |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Jo Daviess, …
Head, age 42
Jo Daviess, Illinois · implied b. ~1888 — 8 household members
| Surname | Blair |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 30 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 53 |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Jo-Daviess-County, Illinois
Head, age 52
Jo-Daviess-County, Illinois · implied b. ~1888 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | J. H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Stockton Township |
| 1935 Residence (County) | Jo Daviess |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| 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 John Blair across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Blair
Head · 1930 · age 42 · b. ~1888 · 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 — Jo Daviess, Illinois
Open full size
1930 US Federal Census — Jo Daviess, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel522:0641)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John T Murray | 45 | Head | Farmer | Illinois |
| 2 | Letilla A Murray | 39 | Wife | — | Illinois |
| 3 | Martin L Murray | 14 | Son | — | Illinois |
| 4 | Marian A Murray | 8 | Daughter | — | Illinois |
| 5 | Robert P Murray | 3 | Son | — | Illinois |
| 6 | Andrew J Conway | 55 | Hired man | Laborer | Ireland |
| 7 | Frank G Rindesbacher | 42 | Head | Farmer | Illinois |
| 8 | Minnie L Rindesbacher | 39 | Wife | — | Illinois |
| 9 | Helen A Rindesbacher | 19 | Daughter | — | Illinois |
| 10 | Ray Rindesbacher | 39 | Brother | Farmer | Illinois |
| 11 | Bruce W Blair | 34 | Head | Farmer | Illinois |
| 12 | Pearl M Blair | 30 | Wife | — | Illinois |
| 13 | James A Beattie | 61 | Hired man | Laborer | New York |
| 14 | William H Morisse | 49 | Head | Farmer | Illinois |
| 15 | Ethel D Morisse | 43 | Wife | — | Illinois |
| 16 | Leola B Morisse | 14 | Daughter | — | Illinois |
| 17 | David Mckinney | 59 | Head | Farmer | Ireland |
| 18 | Polly M Mckinney | 52 | Wife | — | Illinois |
| 19 | Kathryn Mckinney | 25 | Daughter | — | Illinois |
| 20 | Leo D Mckinney | 18 | Son | — | Illinois |
| 21 | Owen Boyle | 43 | Head | Farmer | Illinois |
| 22 | Emma R Boyle | 70 | Mother | — | Illinois |
| 23 | Cletus R Boyle | 15 | Son | Worker | Illinois |
| 24 | Mae B Boyle | 13 | Daughter | — | Illinois |
| 25 | Frances M Boyle | 12 | Daughter | — | Illinois |
| 26 | Bernadine E Boyle | 11 | Daughter | — | Illinois |
| 27 | Virginia B Boyle | 9 | Daughter | — | Illinois |
| 28 | Owen Boyle | 6 | Son | — | Illinois |
| 29 | Norbert Boyle | 4 | Son | — | Illinois |
| 30 | Fred Pritthener | 47 | Hired man | Laborer | Wisconsin |
| 31 | Nellie Hogan | 52 | Head | — | Illinois |
| 32 | Clement J Hogan | 29 | Son | Farmer | Illinois |
| 33 | Walter A Wright | 49 | Boarder | Farmer | Illinois |
| 34 | Paul Milushone | 45 | Head | Farmer | Germany |
| 35 | Magdalena Milushone | 48 | Wife | — | Germany |
| 36 | Florence R Milushone | 21 | Daughter | — | Illinois |
| 37 | Howard Milushone | 19 | Son | Helper | Illinois |
| 38 | Ernest Milushone | 16 | Son | Helper | Illinois |
| 39 | Martin Milushone | 14 | Son | Helper | Illinois |
| 40 | Joseph Milushone | 12 | Son | — | Illinois |
| 41 | Clarence Milushone | 6 | Son | — | Illinois |
| 42 | James Milushone | 2 | Son | — | Illinois |
| 43 | John H Blair THIS PERSON | 42 | Head | Farmer | Illinois |
| 44 | Lena J Blair | 33 | Wife | — | Illinois |
| 45 | Alfred Blair | 9 | Son | — | Illinois |
| 46 | Clyde L Blair | 8 | Son | — | Illinois |
| 47 | Thomas G Blair | 6 | Son | — | Illinois |
| 48 | Thelma Blair | 5 | Daughter | — | Illinois |
| 49 | Arline M Blair | 3 | Daughter | — | Illinois |
| 50 | Viola M Blair | 2 | Daughter | — | 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)