WA
William Arnold — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cass-County, North Dakota
Our Model Tree links this William Arnold across the 1920, 1930 and 1940 US Censuses in Cass-County, North Dakota (XGBoost, ~Confirmed), with identified parents William & Grace — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: North Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, North Dakota |
| Surname | Arnold |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Fargo city |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
| Township / Ward | Fargo City |
| Est. Birth Year | ~1918 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Arnold | Head | — | 48 | ~1892 |
| William Arnold | Son | — | 22 | ~1918 |
| Jack Arnold | Son | — | 15 | ~1925 |
| Grace Arnold | Spouse | — | 47 | ~1893 |
Census Appearances
1920
Cass, North …
Son, age 2
Cass, North Dakota · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | Willis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | North Dakota |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1930
Cass, North …
Son, age 12
Cass, North Dakota · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Arnold |
| Given Name | William H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | North Dakota |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | North Dakota |
| Can Read/Write | Yes |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
1940
Cass-County, North …
Son, age 22
Cass-County, North Dakota · implied b. ~1918 — 4 household members
| Surname | Arnold |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | North Dakota |
| 1935 Residence (City) | Fargo city |
| 1935 Residence (County) | Cass |
| Income (1939) | 0 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | North Dakota |
| Birth Country | United States |
| Birthplace (normalized) | north dakota |
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 William Arnold across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Arnold (~0.92 confidence) and mother Grace Arnold (~0.92 confidence) and mother Grace Arnold (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Arnold
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Grace Arnold
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Grace Arnold
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Arnold
Son · 1940 · age 22 · b. ~1918 · North Dakota
★ You are viewing this record
Sibling
Jack Arnold
Sibling · 1940 · age 15
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 — 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-t0627-02996-00352)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edgar W. Clark | 40 | Head | Salesman | Minnesota |
| 2 | Ellen M. Clark | 41 | Wife | — | Minnesota |
| 3 | Willard P. Clark | 16 | Son | — | Minnesota |
| 4 | Robert W. Clark | 14 | Son | — | Minnesota |
| 5 | William H. Flynn | 85 | Head | — | New York |
| 6 | Oscar Tideman | 41 | Head | Restaurant Keeper | North Dakota |
| 7 | Catherine A. Tideman | 36 | Wife | Restaurant Helper | Iowa |
| 8 | Knute Tideman | 45 | Head | Grocery Store Manager | Washington |
| 9 | Amy M. Tideman | 35 | Wife | Clerk | Minnesota |
| 10 | Charles E. Schrawder | 52 | Head | Salesman | Pennsylvania |
| 11 | Gertrude G. Schrawder | 52 | Wife | — | Wisconsin |
| 12 | Gardner C. Schrawder | 24 | Son | Civil Engineer | Michigan |
| 13 | Gerald R. Schrawder | 22 | Son | — | North Dakota |
| 14 | Woodrow J. Schrawder | 21 | Son | Usher | North Dakota |
| 15 | Jerome L. Schrawder | 19 | Son | — | North Dakota |
| 16 | Minnie Stuckey | 74 | Board | Housekeeper | Wisconsin |
| 17 | William Arnold | 48 | Head | Train Dispatch | Arkansas |
| 18 | Grace Arnold | 47 | Wife | — | North Dakota |
| 19 | William Arnold THIS PERSON | 22 | Son | — | North Dakota |
| 20 | Jack Arnold | 15 | Son | — | North Dakota |
| 21 | Irvin W. Smith | 52 | Head | Actuary | Illinois |
| 22 | Bertha E. Smith | 59 | Wife | — | Illinois |
| 23 | Hattie Chisholm | 88 | Head | Instructor | New York |
| 24 | Anna R. Chisholm | 61 | Daughter | Bookkeeper | Vermont |
| 25 | Marguerite Schwarz | 32 | Head | Teacher | Minnesota |
| 26 | Ralph B. Flathe | 29 | Head | Office Manager | Canada |
| 27 | Ruth E. Flathe | 27 | Wife | — | Minnesota |
| 28 | Patricia J. Flathe | 5 | Daughter | — | Minnesota |
| 29 | John B. Flathe | 3 | Son | — | North Dakota |
| 30 | David J. Flathe | 0 | Son | — | North Dakota |
| 31 | William J. Taverna | 52 | Head | Extension Work | North Dakota |
| 32 | Bessie M. Taverna | 47 | Wife | — | Wisconsin |
| 33 | Willard P. Taverna | 18 | Son | Clerk | North Dakota |
| 34 | Percy M. Taverna | 17 | Son | — | North Dakota |
| 35 | Leda Clare Taverna | 13 | Daughter | — | South Dakota |
| 36 | Marjorie J. Taverna | 12 | Daughter | — | South Dakota |
| 37 | Byrta H. Taverna | 10 | Son | — | North Dakota |
| 38 | Ilona Sue Taverna | 9 | Daughter | — | North Dakota |
| 39 | Almer M. Gladue | 47 | Head | Clerical | Wisconsin |
| 40 | Ole E. Gladue | 71 | Father | Fireman | Norway |
Related Census Records
Pedigree Summary
William + 1 sibling
Gen 1 · 3 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)