RN
Robert Nichols — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Tulsa-County, Oklahoma
Our Model Tree links this Robert Nichols across the 1930 and 1940 US Censuses in Tulsa-County, Oklahoma (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 11-person household.
Age 17
b. ~1923
Male
Son
Born: Texas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tulsa-County, Oklahoma |
| Surname | Nichols |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Tulsa |
| 1935 Residence (County) | Tulsa |
| Additional Details | |
| Occupation | Trash Hauler |
| Industry | Rubbish Disposal |
| Class of Worker | NP |
| Hours Worked | 44 |
| Income (1939) | 988 |
| Highest Grade | No 7 |
| 1935 Residence | Oklahoma |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Occupation | Trash Hauler |
| Township / Ward | Red Fork Twp Range 12 |
| Est. Birth Year | ~1923 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Jesse Nichols | Son | — | 11 | ~1929 |
| Robert Nichols | Son | — | 17 | ~1923 |
| Dolores Nichols | Daughter | — | 7 | ~1933 |
| Florence Nichols | Daughter | — | 13 | ~1927 |
| Mollie Nichols | Daughter | — | 4 | ~1936 |
| Gary Nichols | Son | — | 9 | ~1931 |
| Carl Nichols | Son | — | 25 | ~1915 |
| Melba Nichols | Daughter | — | 15 | ~1925 |
| Charles Nichols | Son | — | 22 | ~1918 |
| Ryan Nichols | Head | — | 49 | ~1891 |
| Mary Nichols | Spouse | — | 45 | ~1895 |
Census Appearances
1930
Tulsa, Oklahoma
Son, age 6
Tulsa, Oklahoma · implied b. ~1924 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nichols |
| Given Name | Robert A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Texas |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Tulsa-County, Oklahoma
Son, age 17
Tulsa-County, Oklahoma · implied b. ~1923 — 11 household members
| Surname | Nichols |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Tulsa |
| 1935 Residence (County) | Tulsa |
| Occupation | Trash Hauler |
| Industry | Rubbish Disposal |
| Class of Worker | NP |
| Hours Worked | 44 |
| Income (1939) | 988 |
| Highest Grade | No 7 |
| 1935 Residence | Oklahoma |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 Robert Nichols across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Nichols
Son · 1940 · age 17 · b. ~1923 · Oklahoma
★ You are viewing this record
Sibling
Mollie Nichols
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dolores Nichols
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Nichols
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melba Nichols
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jesse Nichols
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gary Nichols
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Nichols
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Nichols
Sibling · 1940 · age 22
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 — Tulsa-County, Oklahoma
Open full size
1940 US Federal Census — Tulsa-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03337-00126)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jack Burger | 14 | Son | — | Kentucky |
| 2 | Kathryn Burger | 13 | Daughter | — | Michigan |
| 3 | Mike Burger | 10 | Son | — | Illinois |
| 4 | Pat Burger | 9 | Daughter | — | Iowa |
| 5 | Gladys Burger | 6 | Daughter | — | Illinois |
| 6 | Ola Bella Burger | 4 | Daughter | — | Oklahoma |
| 7 | Ryan Nichols | 49 | Head | Trash Hauler | Texas |
| 8 | Mary Nichols | 45 | Wife | — | Texas |
| 9 | Carl Nichols | 25 | Son | Trash Hauler | Texas |
| 10 | Charles Nichols | 22 | Son | Trash Hauler | Texas |
| 11 | Robert Nichols THIS PERSON | 17 | Son | Trash Hauler | Texas |
| 12 | Melba Nichols | 15 | Daughter | — | Texas |
| 13 | Florence Nichols | 13 | Daughter | — | Oklahoma |
| 14 | Jesse Nichols | 11 | Son | — | Oklahoma |
| 15 | Gary Nichols | 9 | Son | — | Oklahoma |
| 16 | Dolores Nichols | 7 | Daughter | — | Oklahoma |
| 17 | Mollie Sue Nichols | 4 | Daughter | — | Oklahoma |
| 18 | William Wissenback | 29 | Head | Trash Hauler | Iowa |
| 19 | Charles Wissenback | 18 | Brother | Trash Hauler | Iowa |
| 20 | Robert Wissenback | 14 | Brother | — | Iowa |
| 21 | William Martin | 84 | Head | — | Iowa |
| 22 | John Cochran | 41 | Head | Trash Hauler | Missouri |
| 23 | Nora Cochran | 46 | Wife | — | Illinois |
| 24 | Otto Vest | 56 | Head | Trash Hauler | Indiana |
| 25 | Bessie Vest | 52 | Wife | — | Indiana |
| 26 | E W Frazier | 76 | Head | — | Iowa |
| 27 | Martha Frazier | 32 | Wife | — | Iowa |
| 28 | James Holcomb | 59 | Head | Trash Hauler | Iowa |
| 29 | William Ward | 37 | Head | Trash Hauler | Illinois |
| 30 | Nellie Ward | 34 | Wife | — | Missouri |
| 31 | William E Ward | 10 | Son | — | Oklahoma |
| 32 | Albert M Arthur | 49 | Head | Printer | Arkansas |
| 33 | Alice R Arthur | 44 | Wife | — | Iowa |
| 34 | Norman Arthur | 17 | Son | — | Oklahoma |
| 35 | Margaret Arthur | 15 | Daughter | — | Oklahoma |
| 36 | Eleanor Arthur | 13 | Daughter | — | Oklahoma |
| 37 | Cora Jean Arthur | 9 | Daughter | — | Oklahoma |
| 38 | Frank Staple | 39 | Head | Pumper | Pennsylvania |
| 39 | Ione Staple | 37 | Wife | — | Oklahoma |
| 40 | Virginia Staple | 17 | Daughter | — | Oklahoma |
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)