JC
John Conrad — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cass-County, North Dakota
Our Model Tree links this John Conrad across the 1920, 1930 and 1940 US Censuses in Cass-County, North Dakota (XGBoost, ~Confirmed) — first a head (b.~1878), then head of a 3-person household.
Age 62
b. ~1878
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, North Dakota |
| Surname | Conrad |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Erie Township |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Occupation | Track laborer |
| Industry | Rail Road |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 488 |
| Highest Grade | Hs 4 |
| 1935 Residence | No. Dak |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Track Laborer |
| Township / Ward | Erie Township |
| Est. Birth Year | ~1878 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Bernice Conrad | Spouse | — | 52 | ~1888 |
| Robert Conrad | Son | — | 18 | ~1922 |
| John Conrad | Head | — | 62 | ~1878 |
Census Appearances
1920
Cass, North …
Head, age 41
Cass, North Dakota · implied b. ~1879 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conrad |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Indiana |
| Mother's Birthplace | New York |
| Occupation | Real estate |
| Industry | OA |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cass, North …
Head, age 51
Cass, North Dakota · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Conrad |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 36 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | New York |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7500 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cass-County, North …
Head, age 62
Cass-County, North Dakota · implied b. ~1878 — 3 household members
| Surname | Conrad |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Erie Township |
| 1935 Residence (County) | Cass |
| Occupation | Track laborer |
| Industry | Rail Road |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 488 |
| Highest Grade | Hs 4 |
| 1935 Residence | No. Dak |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Conrad 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 Conrad
Head · 1940 · age 62 · b. ~1878 · North Dakota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Cass-County, North Dakota
Open full size
1940 US Federal Census — Cass-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02996-00274)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hulda Nyen | 43 | daughter | — | Minnesota |
| 2 | Bruce S. Bower | 58 | head | Farmer | Maryland |
| 3 | Sarah C. Bower | 54 | wife | — | No. Dak |
| 4 | Joseph M. Evanson | 52 | lodger | Asst. Manager | No. Dak |
| 5 | Theodore R. Power | 38 | lodger | Oil Salesman | Illinois |
| 6 | John Conrad THIS PERSON | 62 | head | Track Laborer | Illinois |
| 7 | Bernice A. Conrad | 52 | wife | Farm Agent | No. Dak |
| 8 | Robert R. Conrad | 18 | son | — | No. Dak |
| 9 | Maggie Mcleod | 74 | head | — | Canada English |
| 10 | Nellie F. Mcleod | 49 | daughter | — | No. Dak |
| 11 | Dougal Johnson | 72 | brother | Nurse | Canada English |
| 12 | Konrad L. Larson | 41 | head | Show Horses | Illinois |
| 13 | Hattie M. Larson | 37 | wife | Mechanic | No. Dak |
| 14 | Kenneth R. Larson | 12 | son | — | No. Dak |
| 15 | Donald L. Larson | 10 | son | — | No. Dak |
| 16 | Wesley L. Bolmeir | 37 | head | Merchant | No. Dak |
| 17 | Ora S. Bolmeir | 29 | wife | — | No. Dak |
| 18 | Gretchen L. Bolmeir | 1 | daughter | — | No. Dak |
| 19 | Lois V. Hammerud | 13 | sister-in-law | — | No. Dak |
| 20 | Haven H. Bolmeir | 39 | head | Merchant | No. Dak |
| 21 | Emma C. Bolmeir | 55 | sister | Teacher | Wisconsin |
| 22 | Melvin R. Bolmeir | 32 | brother | Grain Dealer | No. Dak |
| 23 | Clinton C. Mcleod | 50 | head | Trucker | No. Dak |
| 24 | Viola G. Mcleod | 49 | wife | — | No. Dak |
| 25 | Jack L. Mcleod | 23 | son | Truck Driver | No. Dak |
| 26 | Robert C. Mcleod | 17 | son | N. Y. A | No. Dak |
| 27 | Donald E. Mcleod | 15 | son | — | No. Dak |
| 28 | Grace C. Palmer | 19 | niece | Clerk And Maid | No. Dak |
| 29 | Edward A. Norling | 51 | head | Trucking | Wisconsin |
| 30 | Lizzie Norling | 56 | wife | — | Canada English |
| 31 | August F. Pantz | 65 | head | Janitor | Germany |
| 32 | Lucy E. Pantz | 66 | wife | — | Wisconsin |
| 33 | Jessie Pantz | 35 | head | Farm Labour | No. Dak |
| 34 | Kathryn E. Pantz | 32 | wife | — | No. Dak |
| 35 | Marvin A. Pantz | 5 | son | — | No. Dak |
| 36 | Reuben A. Bolmeir | 49 | head | Dealer | No. Dak |
| 37 | Fern V. Bolmeir | 41 | wife | — | No. Dak |
| 38 | Wallace R. Bolmeir | 16 | son | — | No. Dak |
| 39 | Gerald A. Bolmeir | 14 | son | — | No. Dak |
| 40 | Carol L. Bolmeir | 13 | daughter | — | No. Dak |
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)