JK
John Kline — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this John Kline across the 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 6-person household.
Age 10
b. ~1930
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Kline |
| Given Name | John D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | G 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Frederick City |
| Est. Birth Year | ~1930 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Gloria Kline | Daughter | — | 5 | ~1935 |
| Patricia Kline | Daughter | — | 7 | ~1933 |
| Arthur Kline | Head | — | 44 | ~1896 |
| M Kline | Spouse | — | 34 | ~1906 |
| Arthur Kline | Son | — | 14 | ~1926 |
| John Kline | Son | — | 10 | ~1930 |
Census Appearances
1930
Frederick, Maryland
Son, age 1
Frederick, Maryland · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kline |
| Given Name | John B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Son, age 10
Frederick-County, Maryland · implied b. ~1930 — 6 household members
| Surname | Kline |
| Given Name | John D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Frederick City |
| 1935 Residence (County) | Frederick |
| Class of Worker | 0 |
| Highest Grade | G 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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
Son · 1940 · age 10 · b. ~1930 · Maryland
★ You are viewing this record
Sibling
Gloria Kline
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Kline
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Kline
Sibling · 1940 · age 7
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
1940 US Federal Census — Frederick-County, Maryland
Open full size
1940 US Federal Census — Frederick-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01548-00428)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lawrence E Riggles | 11 | Son | — | Maryland |
| 2 | John T Riggles | 8 | Son | — | Maryland |
| 3 | Catherine S Riggles | 6 | Daughter | — | Maryland |
| 4 | William G Riggles | 5 | Son | — | Maryland |
| 5 | Samuel S Lowe | 55 | Head | Engineer | Maryland |
| 6 | Catherine Lowe | 54 | Wife | Cook | Maryland |
| 7 | Catherine Lowe | 12 | Daughter | — | Maryland |
| 8 | Harry S Phebus | 36 | Head | Quarryman | Maryland |
| 9 | Elva V Phebus | 32 | Wife | — | Maryland |
| 10 | Harry S Jr Phebus | 15 | Son | — | Maryland |
| 11 | Mary E Phebus | 12 | Daughter | — | Maryland |
| 12 | Thelma Phebus | 10 | Daughter | — | Maryland |
| 13 | Marshall T Eden | 20 | Cousin | Farm Hand | Maryland |
| 14 | — | None | — | — | — |
| 15 | Charles T Keith | 80 | Head | — | Maryland |
| 16 | Charles T Keith | 36 | Son | Helper | Maryland |
| 17 | Bernard B Keith | 21 | Son | Helper | Maryland |
| 18 | Lillie M Baer | 62 | Head | — | Maryland |
| 19 | Ralph H Baer | 40 | Son | Machinist | Virginia |
| 20 | Orville C Baer | 12 | Grandson | — | Maryland |
| 21 | Richard T Baer | 5 | Grandson | — | Maryland |
| 22 | Clarence W Hamilton | 42 | Son in law | Plumber | Maryland |
| 23 | Margaret A Hamilton | 39 | Daughter | Seamstress | Maryland |
| 24 | Clarence W Jr Hamilton | 17 | Grandson | — | Maryland |
| 25 | Mae I Hamilton | 9 | Granddaughter | — | Maryland |
| 26 | John E Schill | 65 | Head | — | Maryland |
| 27 | Louise M Schill | 68 | Wife | — | Maryland |
| 28 | Robert S Schill | 35 | Son | Laborer | Maryland |
| 29 | John J Schill | 30 | Son | Truck Driver | Maryland |
| 30 | Arthur D Kline | 44 | Head | Shaper | Maryland |
| 31 | M. Violet Kline | 34 | Wife | — | Maryland |
| 32 | Arthur G Jr Kline | 14 | Son | — | Maryland |
| 33 | John D Kline THIS PERSON | 10 | Son | — | Maryland |
| 34 | Patricia H Kline | 7 | Daughter | — | Maryland |
| 35 | Gloria L Kline | 5 | Daughter | — | Maryland |
| 36 | Irving L Shuffler | 49 | Head | Cut-Off-Saw | Maryland |
| 37 | Mae V Shuffler | 46 | Wife | — | Maryland |
| 38 | Irving L Jr Shuffler | 19 | Son | Truck Driver | Maryland |
| 39 | Mary E Grange | 54 | Head | Seamstress | Maryland |
| 40 | Merle Grange | 20 | Son | Helper | Maryland |
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)