RH
Robert Harper — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Louis-County, Missouri
Our Model Tree links this Robert Harper across the 1920, 1930 and 1940 US Censuses in St.-Louis-County, Missouri (XGBoost, ~Confirmed), with identified parents Claiborne & Tillie — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-County, Missouri |
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Kirkwood City |
| 1935 Residence (County) | St. Louis |
| Additional Details | |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Kirkwood City |
| 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 |
|---|---|---|---|---|
| Claiborne Harper | Head | — | 49 | ~1891 |
| Robert Harper | Son | — | 21 | ~1919 |
| Tillie Harper | Spouse | — | 46 | ~1894 |
| Mary Harper | Other | — | 21 | ~1919 |
Census Appearances
1920
St Louis, …
Son, age 1
St Louis, Missouri · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Son, age 11
St Louis, Missouri · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-County, Missouri
Son, age 21
St.-Louis-County, Missouri · implied b. ~1919 — 4 household members
| Surname | Harper |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Kirkwood City |
| 1935 Residence (County) | St. Louis |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Harper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Claiborne Harper (~0.92 confidence) and mother Tillie Harper (~0.92 confidence) and mother Tillie Harper (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Claiborne Harper
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Tillie Harper
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Tillie Harper
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Harper
Son · 1940 · age 21 · b. ~1919 · Missouri
★ 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 — St.-Louis-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02147-00033)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank, Bernice Frank | 34 | Wife | Nurse | Kansas |
| 42 | Fred Miller | 30 | Head | Installer Of Telephone Equip | Wisconsin |
| 43 | Marguerite Miller | 28 | Wife | — | Minnesota |
| 44 | Marie Meeban | Meehan | 32 | Head | Waitress | Missouri |
| 45 | Edward Bell | 26 | Head | Part Owner & Operator | Missouri |
| 46 | Orvill Baskett | 37 | Head | Clerk In Office | Kansas |
| 47 | Beatrice Baskett | 34 | Wife | Clerk In Store | Louisiana |
| 48 | Ruby Carter | 41 | Head | Clerk In Store | Missouri |
| 49 | Edward Wader | 38 | Janitor | Janitor | Missouri |
| 50 | John Wilkerson Pickel | 84 | Head | — | Tennessee |
| 51 | Alice Pickel | 51 | Daughter | Teacher | Texas |
| 52 | Ruth Pickel | 48 | Daughter | — | Missouri |
| 53 | Laura Pickel | 43 | Daughter | Teacher | Missouri |
| 54 | Frances Pickel | 39 | Daughter | Teacher | Missouri |
| 55 | Frederick Betta | 65 | Head | Manager Of Blue Prints | England |
| 56 | Bernice Betta | 63 | Wife | — | Kansas |
| 57 | Beal (Ab) Betta | 32 | Son | — | Missouri |
| 58 | Anna B (Ab) Overstolz | 73 | Head | — | Missouri |
| 59 | Herman Overstolz | 46 | Son | Salesman | Missouri |
| 60 | Isabella Overstolz | 35 | Daughter-in-law | Sales Lady | Missouri |
| 61 | Cora C Wise | 64 | Head | — | Missouri |
| 62 | Joseph William Wise | 35 | Son | Assistant Secretary | Missouri |
| 63 | Cora W Peters | 32 | Daughter | — | Missouri |
| 64 | John Brad Jr Peters | 5 | Grandson | — | Missouri |
| 65 | John George Mathis | 56 | Lodger | Salesman | Missouri |
| 66 | J. William Knerim | 78 | Head | — | Missouri |
| 67 | Jennie C Knerim | 74 | Wife | — | Illinois |
| 68 | Belford Forest Hines | 53 | Head | Salesman | Tennessee |
| 69 | Eleanor Dallas Hines | 52 | Wife | — | Connecticut |
| 70 | John Thomas Ryan | 76 | Head | — | Missouri |
| 71 | Mary Joseph Ryan | 62 | Wife | — | Missouri |
| 72 | Elizabeth S Donovan | 46 | Head | — | Missouri |
| 73 | Claiborne Harper | 49 | Head | Vice-President | Missouri |
| 74 | Tillie Harper | 46 | Wife | — | Missouri |
| 75 | Robert Harper THIS PERSON | 21 | Son | — | Missouri |
| 76 | Mary Jane Harper | 21 | Daughter-in-law | Clerk In Office | Missouri |
| 77 | Edward Matthis | 32 | Head | Iron Worker | Arkansas |
| 78 | Violet Matthis | 32 | Wife | — | Arkansas |
| 79 | Donald Matthis | 4 | Son | — | Oklahoma |
| 80 | Roberta Hamilton | 31 | Head | Beautician | Missouri |
Pedigree Summary
Robert
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)