SJ
Sidney Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mcpherson-County, Kansas
Our Model Tree links this Sidney Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Mcpherson-County, Kansas (XGBoost, ~Confirmed), with identified parents John & John — first a head (b.~1905), then head of a 5-person household.
Age 35
b. ~1905
Male
Head
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mcpherson-County, Kansas |
| Surname | Johnson |
| Given Name | Sidney |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Union Township |
| 1935 Residence (County) | McPherson |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Farmer |
| Township / Ward | Union Township |
| Est. Birth Year | ~1905 |
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 1940 census.
| Name | Relation to head | Relative to Sidney | Age | Birth yr |
|---|---|---|---|---|
| Mary Johnson | Daughter | — | 5 | ~1935 |
| Marjorie Johnson | Daughter | — | 2 | ~1938 |
| Sidney Johnson | Head | — | 35 | ~1905 |
| Edna Johnson | Spouse | — | 32 | ~1908 |
| Irvan Johnson | Other | — | 23 | ~1917 |
Census Appearances
1910
Mcpherson, Kansas
Son, age 5
Mcpherson, Kansas · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Sidney A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Occupation | none |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1920
Mcpherson, Kansas
Son, age 15
Mcpherson, Kansas · implied b. ~1905 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Sidney |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Mcpherson, Kansas
Son, age 25
Mcpherson, Kansas · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Sidney |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Mcpherson-County, Kansas
Head, age 35
Mcpherson-County, Kansas · implied b. ~1905 — 5 household members
| Surname | Johnson |
| Given Name | Sidney |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Union Township |
| 1935 Residence (County) | McPherson |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Sidney Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Johnson (~0.92 confidence) and father John Johnson (~0.92 confidence) and father Werner Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence) and mother Annie Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Johnson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
John Johnson
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Werner Johnson
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Annie Johnson
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Sidney Johnson
Head · 1940 · age 35 · b. ~1905 · Kansas
★ 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 — Mcpherson-County, Kansas
Open full size
1940 US Federal Census — Mcpherson-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01243-00736)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Isaac Helander | 52 | Head | Farmer | Kansas |
| 42 | Blenda Helander | 50 | Wife | — | Kansas |
| 43 | Amos Helander | 25 | Son | Salesman | Kansas |
| 44 | Florence Helander | 15 | daughter | — | Kansas |
| 45 | Emma Johnson | 81 | mother-in-law | — | Sweden |
| 46 | Carl F. Hart | 38 | Head | Farmer | Kansas |
| 47 | Daisy Hart | 36 | Wife | — | Kansas |
| 48 | Cecil Hart | 18 | Son | — | Kansas |
| 49 | Robert Hart | 13 | Son | — | Kansas |
| 50 | Raymond Hart | 11 | Son | — | Kansas |
| 51 | Donald Hart | 9 | Son | — | Kansas |
| 52 | Susie Hart | 6 | daughter | — | Kansas |
| 53 | Laura Hart | 3 | daughter | — | Kansas |
| 54 | Lulu Hart | 2 | daughter | — | Kansas |
| 55 | Sidney Johnson THIS PERSON | 35 | Head | Farmer | Kansas |
| 56 | Edna N. Johnson | 32 | Wife | — | Kansas |
| 57 | Mary Ann Johnson | 5 | daughter | — | Kansas |
| 58 | Marjorie Lou Johnson | 2 | daughter | — | Kansas |
| 59 | Irvan Johnson | 23 | Brother | Farm Laborer | Kansas |
| 60 | J. Rodney Jenkins | 67 | Head | Farmer | Virginia |
| 61 | Etta Jenkins | 63 | Wife | — | Kansas |
| 62 | Lewin, Evangeline Jenkins | 81 | Mother-in-law | — | England |
| 63 | Arthur T. Ruthren | 53 | Head | — | Kansas |
| 64 | Arthur Lundquist | 58 | Head | Farmer | Kansas |
| 65 | Hulda Lundquist | 55 | Wife | — | Wisconsin |
| 66 | Clarence Lundquist | 22 | Son | Farm Laborer | Kansas |
| 67 | Ruby Lundquist | 20 | daughter | — | Kansas |
| 68 | Otto Martin | 50 | Head | Farmer | Sweden |
| 69 | Axel Lind | 62 | Lodger | — | Sweden |
| 70 | Axel P. Toll | 58 | Head | Farmer | Utah |
| 71 | Niame Toll | 44 | Wife | — | Kansas |
| 72 | Roy L. Toll | 21 | Son | Farmer | Kansas |
| 73 | Marlin Toll | 19 | Son | Farm Laborer | Kansas |
| 74 | Eldon Toll | 9 | Son | — | Kansas |
| 75 | Almer Lundquist | 50 | Head | Farmer | Kansas |
| 76 | Martha C. Lundquist | 53 | Wife | — | Kansas |
| 77 | Virgil R. Lundquist | 21 | Son | — | Kansas |
| 78 | La Vern Lundquist | 19 | Son | Farm Labor | Kansas |
| 79 | Adeline Lundquist | 17 | daughter | — | Kansas |
| 80 | Donald Lundquist | 8 | Son | — | Kansas |
Pedigree Summary
Sidney
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)