JG
John Gardner — 1930 US Census Record
Model Tree available1930 United States Federal Census · Logan, Illinois
Our Model Tree links this John Gardner across the 1920, 1930 and 1940 US Censuses in Logan, Illinois (XGBoost, ~Confirmed), with identified parents Thomas & Andrew — first a son (b.~1910), then head of a 5-person household.
Age 20
b. ~1910
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Logan, Illinois |
| Surname | Gardner |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Farmer |
| Industry | General Farm |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Aetna Township |
| Est. Birth Year | ~1910 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| E Gardner | Daughter | — | 16 | ~1914 |
| Andrew Gardner | Head | — | 49 | ~1881 |
| Maude Gardner | Other | — | 47 | ~1883 |
| Harold Gardner | Son | — | 9 | ~1921 |
| John Gardner | Son | — | 20 | ~1910 |
Census Appearances
1920
Logan, Illinois
Son, age 11
Logan, Illinois · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Logan, Illinois
Son, age 20
Logan, Illinois · implied b. ~1910 — 5 household members
| Surname | Gardner |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General Farm |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Logan-County, Illinois
Head, age 30
Logan-County, Illinois · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | Jno P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Aetna |
| 1935 Residence (County) | Logan |
| Occupation | Laborer |
| Industry | farm |
| Class of Worker | W |
| Hours Worked | 9 |
| Income (1939) | 60 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| 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 Gardner across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Gardner (~0.92 confidence) and father Andrew Gardner (~0.92 confidence) and mother Maude Gardner (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Gardner
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Andrew Gardner
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Maude Gardner
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Gardner
Son · 1930 · age 20 · b. ~1910 · Illinois
★ You are viewing this record
Sibling
E Gardner
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Gardner
Sibling · 1930 · age 9
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
1930 US Federal Census — Logan, Illinois
Open full size
1930 US Federal Census — Logan, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel534:0564)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Andrew T. Gardner | 49 | Head | Farming | Illinois |
| 2 | Maude M. Gardner | 47 | Wife-H | — | Illinois |
| 3 | John P. Gardner THIS PERSON | 20 | Son | Farmer | Illinois |
| 4 | E. Mildred Gardner | 16 | Daughter | — | Illinois |
| 5 | Harold A. Gardner | 9 | Son | — | Illinois |
| 6 | M. Y. Hedrick | 56 | Head | Farmer | Illinois |
| 7 | Katherine Hedrick | 52 | Wife-H | — | Denmark |
| 8 | Scott Hubbell | 35 | Servant | Farm Labor | Illinois |
| 9 | Homer Bateman | 35 | Head | Farm Labor | Illinois |
| 10 | Myrtle E. Bateman | 39 | Wife-H | — | Illinois |
| 11 | Richard H. Bateman | 10 | Son | — | Illinois |
| 12 | Robert C. Bateman | 9 | Son | — | Illinois |
| 13 | Irene E. Bateman | 5 | Daughter | — | Illinois |
| 14 | Marcel Lewis | 18 | Step Son | Labor | Illinois |
| 15 | George Kolze | 65 | Head | Farmer | Illinois |
| 16 | Regina Kolze | 58 | Wife-H | — | Germany |
| 17 | Elmer Kolze | 28 | Son | Farming | Illinois |
| 18 | Edward J. Mayer | 37 | Head | Farmer | Illinois |
| 19 | Regina B. Mayer | 34 | Wife-H | — | Pennsylvania |
| 20 | Hildegarde Mayer | 14 | Daughter | — | Illinois |
| 21 | E. Eugene Mayer | 7 | Son | — | Illinois |
| 22 | Paul Hitchcraft | 18 | Boarder | Farm Labor | Illinois |
| 23 | David Laughery | 44 | Head | Farmer | Ireland |
| 24 | Ida B. Laughery | 31 | Wife-H | — | Illinois |
| 25 | Earl H. Stritch | 16 | Nephew | Labor | Illinois |
| 26 | William H. Hulm | 27 | Head | Labor | Kentucky |
| 27 | Madeline M. Hulm | 25 | Wife-H | — | Illinois |
| 28 | Donald D. Hulm | 6 | Son | — | Illinois |
| 29 | Louisa E. Hulm | 4 | Daughter | — | Illinois |
| 30 | V. D. Coates | 68 | Head | Farmer | Wisconsin |
| 31 | Martha E. Coates | 63 | Wife-H | — | Ireland |
| 32 | Nardie Coates | 20 | Daughter | — | Illinois |
| 33 | Robert Boiler | 60 | Boarder | Labor | New Jersey |
| 34 | Walter B. Leming | 55 | Head | Farmer | Ohio |
| 35 | Ella M. Leming | 61 | Wife-H | — | Illinois |
| 36 | Wm A. Leming | 24 | Son | Truck Dr | Illinois |
| 37 | Walter Miller | 60 | Head | Farmer | Indiana |
| 38 | Mary E. Miller | 57 | Wife-H | — | Illinois |
| 39 | George Clinton Miller | 25 | Son | Farmer | Illinois |
| 40 | Lotta A. Miller | 19 | Daughter | — | Illinois |
| 41 | Edith L. Miller | 16 | Daughter | — | Illinois |
| 42 | Edwin Gardner | 26 | Head | Farmer | Illinois |
| 43 | T. Fern Gardner | 29 | Wife-H | — | Illinois |
| 44 | Herbert Enlow | 20 | Boarder | Farm Labor | Missouri |
| 45 | Ernest E. Horman | 38 | Head | Farmer | Illinois |
| 46 | Lena E. Horman | 39 | Wife-H | — | Illinois |
| 47 | Evylyn L. Horman | 15 | Daughter | — | Illinois |
| 48 | Marjorie P. Horman | 14 | Daughter | — | Illinois |
| 49 | Donald L. Horman | 13 | Son | — | Illinois |
| 50 | Doris J. Horman | 11 | Daughter | — | Illinois |
Pedigree Summary
John + 2 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)