RB
Robert Bailey — 1940 US Census Record
Model Tree available1940 United States Federal Census · Denver-County, Colorado
Our Model Tree links this Robert Bailey across the 1920, 1930 and 1940 US Censuses in Denver-County, Colorado (XGBoost, ~Confirmed), with identified parents Grace & Grace — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Denver-County, Colorado |
| Surname | Bailey |
| Given Name | Robert Linn |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City & County |
| Additional Details | |
| Highest Grade | C-3 |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Denver City County |
| Est. Birth Year | ~1919 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Helen Bailey | Daughter | — | 19 | ~1921 |
| Elpha Bailey | Head | — | 48 | ~1892 |
| Robert Bailey | Son | — | 21 | ~1919 |
| Grace Bailey | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Denver, Colorado
Son, age 1
Denver, Colorado · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bailey |
| Given Name | Robt G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Illinois |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Denver, Colorado
Son, age 11
Denver, Colorado · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bailey |
| Given Name | Robert G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Denver-County, Colorado
Son, age 21
Denver-County, Colorado · implied b. ~1919 — 4 household members
| Surname | Bailey |
| Given Name | Robert Linn |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Denver City & County |
| Highest Grade | C-3 |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Bailey across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Grace Bailey (~0.92 confidence) and mother Grace Bailey (~0.92 confidence) and father Alpha Bailey (~0.92 confidence) and father Elisha Bailey (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Grace Bailey
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Grace Bailey
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
Alpha Bailey
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Elisha Bailey
b. ~1892
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Bailey
Son · 1940 · age 21 · b. ~1919 · Colorado
★ You are viewing this record
Sibling
Helen Bailey
Sibling · 1940 · age 19
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 — Denver-County, Colorado
Open full size
1940 US Federal Census — Denver-County, Colorado
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00489-00178)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 42 | Gilbert Van Orstrand | 39 | Head | Supervisor | Illinois |
| 43 | Edith Van Orstrand | 36 | Wife | — | Illinois |
| 44 | Joseph F. Van Orstrand | 13 | Son | — | Colorado |
| 45 | Nell G. Van Orstrand | 11 | Son | — | Colorado |
| 46 | Carol Lee Van Orstrand | 7 | Daughter | — | Colorado |
| 47 | John Knox Hall | 81 | Head | — | Canada |
| 48 | Carrie L. Hall | 71 | Wife | — | Iowa |
| 49 | James Logan | 21 | Lodger | Clerk | Nebraska |
| 50 | Elpha E. Bailey | 48 | Head | Dentist | Kansas |
| 51 | Grace R. Bailey | 52 | Wife | — | Illinois |
| 52 | Robert Linn Bailey THIS PERSON | 21 | Son | — | Colorado |
| 53 | Helen Elizabeth Bailey | 19 | Daughter | — | Colorado |
| 54 | Walter S. Reed | 55 | Head | President | Iowa |
| 55 | Ruth W. Reed | 57 | Wife | — | Ohio |
| 56 | Samuel J. Brake | 73 | Head | Lumber | Indiana |
| 57 | Ina M. Brake | 73 | Wife | — | Indiana |
| 58 | Ira C. Brownlie | 66 | Head | Periodontist | Iowa |
| 59 | Ida F. Brownlie | 67 | Wife | — | Illinois |
| 60 | Helen Elizabeth Brownlie | 29 | Daughter | Teacher | Colorado |
| 61 | John Clinton | 59 | Servant | Houseman | Nebraska |
| 62 | Sidney Moritz | 66 | Head | President | Iowa |
| 63 | Ella C.A. Moritz | 65 | Wife | — | Iowa |
| 64 | Rose Casper | 52 | Maid | Maid | Austria |
| 65 | Chas. E. Drennew | 57 | Head | Electrician | Minnesota |
| 66 | Helen W. Drennew | 53 | Wife | — | Illinois |
| 67 | Chas. E. Jr. Drennew | 19 | Son | — | Colorado |
| 68 | Elizabeth Drennew | 15 | Daughter | — | Illinois |
| 69 | Ethel Birdsall | 38 | Maid | Maid | Colorado |
| 70 | Kenneth K. Francis | 51 | Head | President | Minnesota |
| 71 | Bella S. Francis | 46 | Wife | — | Colorado |
| 72 | Kenneth C. Francis | 17 | Son | — | Colorado |
| 73 | Thomas Francis | 12 | Son | — | Colorado |
| 74 | Louise Engel | 22 | Maid | Maid | Colorado |
| 75 | Chas. A. Laird | 51 | Head | Cashier | Arkansas |
| 76 | Mildred P. Laird | 48 | Wife | — | Colorado |
| 77 | Marjorie Ann Laird | 17 | Daughter | — | Colorado |
| 78 | John H. Edwards | 75 | Head | Realtor | Wisconsin |
| 79 | Margaret M. Edwards | 75 | Wife | — | Ohio |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 4 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)