RL
Ruby Lee — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Linn-County, Iowa
Our Model Tree links this Ruby Lee across the 1930 and 1940 US Censuses in Linn-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 11-person household.
Age 18
b. ~1922
Female
Daughter
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Linn-County, Iowa |
| Surname | Lee |
| Given Name | Ruby |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Cedar Rapids |
| 1935 Residence (County) | Linn |
| Additional Details | |
| Occupation | maid |
| Industry | private family |
| Class of Worker | PW |
| Hours Worked | 63 |
| Income (1939) | 108 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Maid |
| Township / Ward | Cedar Rapids |
| Est. Birth Year | ~1922 |
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 Ruby | Age | Birth yr |
|---|---|---|---|---|
| Zarcie Lee | Daughter | — | 20 | ~1920 |
| Sarah Moore | Daughter | — | 10 | ~1930 |
| Alice Wilson | Other | — | 5 | ~1935 |
| Theressa Wilson | Daughter | — | 24 | ~1916 |
| Margaret Lee | Daughter | — | 17 | ~1923 |
| Jack Clayton | Son | — | 5 | ~1935 |
| Cora Lee | Spouse | — | 47 | ~1893 |
| Ruby Lee | Daughter | — | 18 | ~1922 |
| Columbus Lee | Head | — | 59 | ~1881 |
| Joseph Lee | Son | — | 9 | ~1931 |
| Ray Lee | Son | — | 13 | ~1927 |
Census Appearances
1930
Linn, Iowa
Daughter, age 8
Linn, Iowa · implied b. ~1922 — 16 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Ruby |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Arkansas |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Linn-County, Iowa
Daughter, age 18
Linn-County, Iowa · implied b. ~1922 — 11 household members
| Surname | Lee |
| Given Name | Ruby |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Cedar Rapids |
| 1935 Residence (County) | Linn |
| Occupation | maid |
| Industry | private family |
| Class of Worker | PW |
| Hours Worked | 63 |
| Income (1939) | 108 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 Ruby Lee across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ruby Lee
Daughter · 1940 · age 18 · b. ~1922 · Iowa
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Sibling
Jack Clayton
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Lee
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theressa Wilson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Zarcie Lee
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ray Lee
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Lee
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Moore
Sibling · 1940 · age 10
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 — Linn-County, Iowa
Open full size
1940 US Federal Census — Linn-County, Iowa
Page Contents
12 people indexed on this census page (nara:1940:m-t0627-01177-00460)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Columbus Lee | 59 | Head | Laborer | Arkansas |
| 2 | Cora Lee Lee | 47 | wife | — | Arkansas |
| 3 | Zarcie Lee | 20 | daughter | Maid | Oklahoma |
| 4 | Ruby Lee THIS PERSON | 18 | daughter | Maid | Oklahoma |
| 5 | Margaret Lee | 17 | daughter | — | Oklahoma |
| 6 | Ray Lee | 13 | son | — | Oklahoma |
| 7 | Joseph Lee | 9 | son | — | Iowa |
| 8 | Theressa Wilson | 24 | daughter | Maid | Oklahoma |
| 9 | Alice Wilson | 5 | granddaughter | — | Iowa |
| 10 | Sarah Moore | 10 | daughter | — | South Dakota |
| 11 | Jack Clayton | 5 | son | — | Iowa |
| 12 | Charles C. Hancock | 49 | Head | Salesman | Iowa |
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)