BN
Bertha Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this Bertha Nelson across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 6-person household.
Age 55
b. ~1885
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Nelson |
| Given Name | Bertha |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet |
| 1935 Residence (County) | Will |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Joliet |
| Est. Birth Year | ~1885 |
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 Bertha | Age | Birth yr |
|---|---|---|---|---|
| Joseph Nelson | Head | — | 57 | ~1883 |
| Bertha Nelson | Spouse | — | 55 | ~1885 |
| Edward Nelson | Son | — | 23 | ~1917 |
| Bernice Nelson | Daughter | — | 37 | ~1903 |
| Verna Kurtz | Daughter | — | 35 | ~1905 |
| Harvey Kurtz | Other | — | 36 | ~1904 |
Census Appearances
1920
Will, Illinois
Other, age 34
Will, Illinois · implied b. ~1886 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Bertha |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Canada |
| Mother's Birthplace | Canada |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Will, Illinois
Spouse, age 45
Will, Illinois · implied b. ~1885 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 26 |
| Father's Birthplace | England |
| Mother's Birthplace | Canada |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Will-County, Illinois
Spouse, age 55
Will-County, Illinois · implied b. ~1885 — 6 household members
| Surname | Nelson |
| Given Name | Bertha |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Joliet |
| 1935 Residence (County) | Will |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| 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 Bertha Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Nelson
Spouse · 1940 · age 55 · b. ~1885 · Illinois
★ 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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00908-00037)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie G. Nelson | 5 | daughter | — | Illinois |
| 42 | Joseph Nelson | 57 | head | Foreman | Illinois |
| 43 | Bertha Nelson THIS PERSON | 55 | wife | — | Illinois |
| 44 | Edward J. Nelson | 23 | son | — | Illinois |
| 45 | Harvey L. Kurtz | 36 | son-in-law | — | Pennsylvania |
| 46 | Verna N. Kurtz | 35 | daughter | Fitter | Illinois |
| 47 | Bernice Nelson | 37 | daughter | Laborer | Illinois |
| 48 | Edward Byron | 44 | head | Salesman | Kentucky |
| 49 | Lois S. Byron | 41 | wife | Nurse | Indiana |
| 50 | A. Elmer Byron | 17 | son | — | Illinois |
| 51 | B. Kenneth Byron | 20 | son | Office Clerk | Illinois |
| 52 | Elizabeth Byron | 20 | daughter-in-law | — | Illinois |
| 53 | James A. Fishwick | 66 | head | — | England |
| 54 | Ida Fishwick | 66 | wife | — | England |
| 55 | Harry Billington | 28 | nephew | Nailer | England |
| 56 | Leo E. Smith | 47 | head | Assembly Man | Illinois |
| 57 | Magdalene M. Smith | 47 | wife | — | Illinois |
| 58 | Magdalene D. Smith | 22 | daughter | Saleslady | Illinois |
| 60 | Lillie Mc Ginnis | 68 | head | — | Ohio |
| 61 | Lois Emerson | 39 | daughter | Saleslady | Illinois |
| 62 | Harry Corrie | 35 | boarder | Salesman | Illinois |
| 63 | William Lang | 47 | head | Color-Mixer | New York |
| 64 | Edith L. Lang | 52 | wife | — | Pennsylvania |
| 65 | Mary L. Lang | 15 | daughter | — | Pennsylvania |
| 66 | William Conley | 73 | head | — | Illinois |
| 67 | Frank H. Hillard | 70 | head | — | Iowa |
| 68 | Helen Mafo | 56 | sister-in-law | — | Iowa |
| 69 | Herald D. Bryant | 18 | boarder | Clerking | Illinois |
| 70 | Margaret Minard | 65 | head | Clerk | Illinois |
| 71 | Edward Harmon | 37 | son-in-law | Budget Clerk | Illinois |
| 72 | Alma Harmon | 34 | daughter | Comptometer Operator | Illinois |
| 73 | Theresa Hine | 63 | head | — | Illinois |
| 74 | Robert Hine | 38 | son | Shipping Foreman | Illinois |
| 75 | Donald Hine | 24 | son | Accountant | Illinois |
| 76 | Evelyn Hine | 32 | daughter | Stenographer | Illinois |
| 78 | John Yelfer | 53 | head | Private | Illinois |
| 79 | Jennie M. Yelfer | 47 | wife | — | Illinois |
| 80 | William R. Yelfer | 24 | son | Laborer | Illinois |
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)