JG
John Gross — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Clay, Iowa
Our Model Tree links this John Gross across the 1920, 1930 and 1940 US Censuses in Clay, Iowa (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 6-person household.
Age 37
b. ~1893
Male
Head
Born: Iowa
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Clay, Iowa |
| Surname | Gross |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 25 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Gillett Grove Township |
| Est. Birth Year | ~1893 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Adron Geary | Other | — | 29 | ~1901 |
| Raymond Gross | Son | — | 9 | ~1921 |
| Katy Gross | Other | — | 36 | ~1894 |
| Harold Gross | Son | — | 8 | ~1922 |
| Lillie Gross | Daughter | — | 11 | ~1919 |
| John Gross | Head | — | 37 | ~1893 |
Census Appearances
1920
Clay, Iowa
Head, age 27
Clay, Iowa · implied b. ~1893 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gross |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Clay, Iowa
Head, age 37
Clay, Iowa · implied b. ~1893 — 6 household members
| Surname | Gross |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 25 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Clay-County, Iowa
Head, age 47
Clay-County, Iowa · implied b. ~1893 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grass |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Gillett Grove |
| 1935 Residence (County) | Clay |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Gross across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Gross
Head · 1930 · age 37 · b. ~1893 · Iowa
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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 — Clay, Iowa
Open full size
1930 US Federal Census — Clay, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel648:0923)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Evelyn Mills | 17 | Daughter | None | Iowa |
| 2 | Merle Mills | 9 | Son | None | Iowa |
| 3 | Carl J. A. Abel | 53 | Head | Farmer | Illinois |
| 4 | Hulda T. Abel | 50 | Wife-H | None | Iowa |
| 5 | Arthur H. Abel | 20 | Son | Laborer | Iowa |
| 6 | Violet Abel | 17 | Daughter | None | Iowa |
| 7 | Carl E. Abel | 15 | Son | None | Iowa |
| 8 | William H. Peters | 35 | Head | Farmer | Iowa |
| 9 | Martina Peters | 31 | Wife-H | None | Iowa |
| 10 | Doreen J. Peters | 9 | Daughter | None | Iowa |
| 11 | William H. Peters | 2 | Son | None | Iowa |
| 12 | James H. Frozier | 29 | Head | Laborer | Iowa |
| 13 | Inez Frozier | 32 | Wife-H | None | Minnesota |
| 14 | Thomas H. Frozier | 7 | Son | None | Iowa |
| 15 | Phyllis Frozier | 5 | Daughter | None | Iowa |
| 16 | Ruth E. Frozier | 3 | Daughter | None | Iowa |
| 17 | Alvin O. Davis | 53 | Head | Farmer | Iowa |
| 18 | Jessie B. Davis | 54 | Wife-H | None | Iowa |
| 19 | Louis E. Mills | 55 | Head | Farmer | Iowa |
| 20 | Myrtle Mills | 44 | Wife-H | None | Iowa |
| 21 | Helen L. Mills | 22 | Daughter | Teacher | Iowa |
| 22 | Ivan T. Mills | 21 | Son | Laborer | Iowa |
| 23 | Vernon J. Mills | 19 | Son | Helper | Iowa |
| 24 | Ruth E. Mills | 16 | Daughter | None | Iowa |
| 25 | Roger E. Mills | 12 | Son | None | Iowa |
| 26 | Virginia E. Mills | 10 | Daughter | None | Iowa |
| 27 | Margaret J. Mills | 7 | Daughter | None | Iowa |
| 28 | Frank L. Delore | 26 | Head | Laborer | Minnesota |
| 29 | Lucille V. Delore | 19 | Wife-H | None | Iowa |
| 30 | Charles L. Delore | 1 | Son | None | Iowa |
| 31 | John Gross THIS PERSON | 37 | Head | Farmer | Iowa |
| 32 | Katy T. Gross | 36 | Wife-H | None | Illinois |
| 33 | Lillie M. Gross | 11 | Daughter | None | Iowa |
| 34 | Raymond Gross | 9 | Son | None | Iowa |
| 35 | Harold J. Gross | 8 | Son | None | Iowa |
| 36 | Adron E. Geary | 29 | Lodger | Laborer | Nebraska |
| 37 | Elmer H. Bangtaf | 29 | Head | Farmer | Iowa |
| 38 | Carrie M. Bangtaf | 30 | Wife-H | None | Iowa |
| 39 | Raymond D. Bangtaf | 9 | Son | None | Iowa |
| 40 | Charlotte A. Bangtaf | 7 | Daughter | None | Iowa |
| 41 | Dorothy E. Bangtaf | 5 | Daughter | None | Iowa |
| 42 | Mary M. Bangtaf | 4 | Daughter | None | Iowa |
| 43 | James Alexander | 45 | Head | Farmer | Illinois |
| 44 | Hattie Alexander | 37 | Wife-H | None | Wisconsin |
| 45 | Roy Penny | 21 | Lodger | Laborer | Missouri |
| 46 | Ludwig H. Bangtaf | 41 | Head | Farmer | Iowa |
| 47 | Lillian E. Bangtaf | 38 | Wife-H | None | Iowa |
| 48 | Frances L. Bangtaf | 10 | Daughter | None | Iowa |
| 49 | Dorothy J. Bangtaf | 9 | Daughter | None | Iowa |
| 50 | Gladys L. Bangtaf | 7 | Daughter | None | Iowa |
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)