JK
John Kline — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Florida
Our Model Tree links this John Kline across the 1930 and 1940 US Censuses in Polk-County, Florida (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 10-person household.
Age 49
b. ~1891
Male
Head
Born: Austria-Hungary
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Florida |
| Surname | Kline |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Austria-Hungary |
| 1935 Residence (City) | Precinct 18 Mulberry |
| 1935 Residence (County) | Polk |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Truck farming |
| Class of Worker | OA |
| Hours Worked | 80 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | austria-hungary |
| Occupation | Farmer |
| Township / Ward | Precinct 18 Mulberry |
| Est. Birth Year | ~1891 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Marie Kline | Daughter | — | 12 | ~1928 |
| Lillian Kline | Daughter | — | 2 | ~1938 |
| Sarah Kline | Daughter | — | 3 | ~1937 |
| Marie Kline | Spouse | — | 32 | ~1908 |
| John Kline | Son | — | 11 | ~1929 |
| David Kline | Son | — | 4 | ~1936 |
| Anna Kline | Daughter | — | 9 | ~1931 |
| Esther Kline | Daughter | — | 5 | ~1935 |
| Ruth Kline | Daughter | — | 8 | ~1932 |
| John Kline | Head | — | 49 | ~1891 |
Census Appearances
1930
Polk, Florida
Head, age 39
Polk, Florida · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Klein |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Austria-Hungary |
| Naturalization Status | Naturalized |
| Year of Immigration | 1911 |
| Age at First Marriage | 26 |
| Father's Birthplace | Austria-Hungary |
| Mother's Birthplace | Austria-Hungary |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Mother Tongue | Un |
| Home Owned/Rented | O |
| Home Value / Rent | 2200 |
| Birthplace (normalized) | austria-hungary |
1940
Polk-County, Florida
Head, age 49
Polk-County, Florida · implied b. ~1891 — 10 household members
| Surname | Kline |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Austria-Hungary |
| 1935 Residence (City) | Precinct 18 Mulberry |
| 1935 Residence (County) | Polk |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Truck farming |
| Class of Worker | OA |
| Hours Worked | 80 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birthplace (normalized) | austria-hungary |
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 Kline across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Kline
Head · 1940 · age 49 · b. ~1891 · Florida
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Polk-County, Florida
Open full size
1940 US Federal Census — Polk-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00613-00642)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Betty Davis | 6 | Daughter | — | Florida |
| 42 | W. H. Davis | 78 | Father | — | Florida |
| 43 | H. F. Young | 60 | Head | Mechanic | Georgia |
| 44 | Annie Young | 55 | Wife | — | Georgia |
| 45 | James Young | 27 | Son | Carpenter | Florida |
| 46 | Iris Young | 21 | Daughter | Bookkeeper | Florida |
| 47 | Frank Young | 18 | Son | Mechanic | Florida |
| 48 | Jean Young | 14 | Daughter | — | Florida |
| 49 | Henry Byrd | 35 | Head | Electrician | Florida |
| 50 | Penny R. Byrd | 26 | Wife | — | Florida |
| 51 | W. H. Byrd | 73 | Father | — | Florida |
| 52 | Cynthia Byrd | 60 | Mother | — | Florida |
| 53 | John Moore | 41 | Head | Electrician | Florida |
| 54 | Pauline Moore | 33 | Wife | — | Florida |
| 55 | Pansy Moore | 17 | Daughter | — | Florida |
| 56 | Laura Moore | 14 | Daughter | — | Florida |
| 57 | John Jr. Moore | 12 | Son | — | Florida |
| 58 | Bollie J. Moore | 9 | Son | — | Florida |
| 59 | Jimmie Ray Moore | 4 | Son | — | Florida |
| 60 | J. E. Moore | 66 | Father | — | Florida |
| 61 | Oscar Lewis | 47 | Head | Drag Line Operator | Florida |
| 62 | Jenny Lewis | 45 | Wife | — | Florida |
| 63 | Paul Lewis | 20 | Son | New Worker | Florida |
| 64 | Ethel Lewis | 15 | Daughter | — | Florida |
| 65 | Alvia Lewis | 13 | Daughter | — | Florida |
| 66 | J. P. O'Caine | 47 | Head | Superintendent | Florida |
| 67 | O'Caine | 40 | Wife | — | Florida |
| 68 | Lewis O'Caine | 11 | Son | — | Florida |
| 69 | James O'Caine | 10 | Son | — | Florida |
| 70 | Patsy O'Caine | 5 | Daughter | — | Florida |
| 71 | John Kline THIS PERSON | 49 | Head | Farmer | Austria-Hungary |
| 72 | Marie Kline | 32 | Wife | Farmer | Austria-Hungary |
| 73 | Marie Kline | 12 | Daughter | — | Florida |
| 74 | John Kline | 11 | Son | — | Florida |
| 75 | Anna Kline | 9 | Daughter | — | Florida |
| 76 | Ruth Kline | 8 | Daughter | — | Florida |
| 77 | Esther Kline | 5 | Daughter | — | Florida |
| 78 | David Kline | 4 | Son | — | Florida |
| 79 | Sarah Kline | 3 | Daughter | — | Florida |
| 80 | Lillian Kline | 2 | Daughter | — | Florida |
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)