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John Murdock — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sumner-County, Kansas
Our Model Tree links this John Murdock across the 1930 and 1940 US Censuses in Sumner-County, Kansas (XGBoost, ~Confirmed) — first a son (b.~1912), then head of a 7-person household.
Age 28
b. ~1912
Male
Son
Born: Nebraska
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sumner-County, Kansas |
| Surname | Murdock |
| Given Name | John D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Caldwell City |
| 1935 Residence (County) | Sumner |
| Additional Details | |
| Occupation | Assistant construction |
| Industry | County |
| Class of Worker | GW |
| Hours Worked | 24 |
| Income (1939) | 252 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
| Occupation | Assistant Construction |
| Township / Ward | Caldwell City |
| Est. Birth Year | ~1912 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Victor Murdock | Son | — | 17 | ~1923 |
| Clara Murdock | Daughter | — | 26 | ~1914 |
| Mary Murdock | Spouse | — | 60 | ~1880 |
| Hiram Murdock | Head | — | 75 | ~1865 |
| Arthur Murdock | Son | — | 23 | ~1917 |
| John Murdock | Son | — | 28 | ~1912 |
| Clifford Murdock | Son | — | 2 | ~1938 |
Census Appearances
1930
Sumner, Kansas
Son, age 16
Sumner, Kansas · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Murdock |
| Given Name | John D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Nebraska |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
1940
Sumner-County, Kansas
Son, age 28
Sumner-County, Kansas · implied b. ~1912 — 7 household members
| Surname | Murdock |
| Given Name | John D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Nebraska |
| 1935 Residence (City) | Caldwell City |
| 1935 Residence (County) | Sumner |
| Occupation | Assistant construction |
| Industry | County |
| Class of Worker | GW |
| Hours Worked | 24 |
| Income (1939) | 252 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Nebraska |
| Birth Country | United States |
| Birthplace (normalized) | nebraska |
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 Murdock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Murdock
Son · 1940 · age 28 · b. ~1912 · Kansas
★ You are viewing this record
Sibling
Victor Murdock
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Murdock
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Murdock
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clifford Murdock
Sibling · 1940 · age 2
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 — Sumner-County, Kansas
Open full size
1940 US Federal Census — Sumner-County, Kansas
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01263-00261)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mackey Virginia Mackey | 10 | Daughter | — | Kansas |
| 42 | Perry J Cook | 34 | Head | Linotype Operator | Kansas |
| 43 | Opal M Cook | 32 | Wife | — | Kansas |
| 44 | Velma V Cook | 4 | Son | — | Kansas |
| 45 | Rodney J Cook | 0 | Son | — | Kansas |
| 46 | Perley L Cunningham | 33 | Head | Proprietor | Ohio |
| 47 | Clara E Cunningham | 31 | Wife | Housekeeping | Kansas |
| 48 | Maxine L Cunningham | 11 | Daughter | — | Kansas |
| 49 | Richard E Cunningham | 8 | Son | — | Kansas |
| 51 | Earl M Burgess | 58 | Head | Bank Cashier | Kansas |
| 52 | Louise A Burgess | 56 | Wife | Prop. Of Farm | Kansas |
| 53 | James E Burgess | 17 | Son | Farm Laborer | Kansas |
| 55 | Fletcher H Rader | 52 | Head | Machinist Helper (In Rr Yards) | Nebraska |
| 56 | Nova M Rader | 45 | Wife | — | Missouri |
| 57 | June L Rader | 17 | Daughter | — | Kansas |
| 58 | Phillip C Rader | 9 | Son | — | Kansas |
| 59 | Hiram Murdock | 75 | Head | — | New York |
| 60 | Mary E Murdock | 60 | Wife | — | Illinois |
| 61 | John D Murdock THIS PERSON | 28 | Son | Assistant Construction | Nebraska |
| 62 | Clara Murdock | 26 | Daughter | Seamstress | Kansas |
| 63 | Arthur Murdock | 23 | Son | Odd Jobs | Nebraska |
| 64 | Victor Murdock | 17 | Son | — | Kansas |
| 65 | Clifford Murdock | 2 | Son | — | Kansas |
| 66 | Clem E Moore | 45 | Head | Laborer At Railroad | Kansas |
| 67 | Emma J Moore | 38 | Wife | — | Ohio |
| 68 | Julia I Moore | 15 | Daughter | — | Kansas |
| 69 | Harry O Macklin | 56 | Head | — | Penn. |
| 70 | Chas Mccullough | 63 | Head | — | Illinois |
| 71 | Jessie Mccullough | 72 | Wife | — | Ohio |
| 72 | Earl Rains | 48 | Head | Proprietor Garage | Kansas |
| 73 | Anna Rains | 47 | Wife | Book Keeper | Kansas |
| 74 | La Veta Rains | 24 | Daughter | — | Kansas |
| 75 | Eilene (Ab) Rains | 18 | Daughter | — | Kansas |
| 76 | Earlene Rains | 15 | Daughter | — | Kansas |
| 77 | Gwennadene Rains | 7 | Daughter | — | Kansas |
| 78 | Cyrus Lafner | 76 | Head | — | Indiana |
| 79 | Flora E Lafner | 73 | Wife | — | Oregon |
| 80 | Henry C Lafner | 44 | Son | 8 | Washington |
Related Census Records
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)