RA
Robert Alexander — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pike-County, Ohio
Our Model Tree links this Robert Alexander across the 1920, 1930 and 1940 US Censuses in Pike-County, Ohio (XGBoost, ~Confirmed), with identified parents Alonzo & Carrie — first a son (b.~1910), then head of a 2-person household.
Age 30
b. ~1910
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pike-County, Ohio |
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Village of Waverly |
| 1935 Residence (County) | Pike |
| Additional Details | |
| Occupation | Mechanic auto |
| Industry | own account |
| Class of Worker | OA |
| Hours Worked | 6 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Mechanic Auto |
| Township / Ward | Village Of Waverly |
| Est. Birth Year | ~1910 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Caryata Alexander | Head | — | 73 | ~1867 |
| Robert Alexander | Son | — | 30 | ~1910 |
Census Appearances
1920
Pike, Ohio
Son, age 10
Pike, Ohio · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Pike, Ohio
Son, age 20
Pike, Ohio · implied b. ~1910 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Mechanic |
| Industry | Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Pike-County, Ohio
Son, age 30
Pike-County, Ohio · implied b. ~1910 — 2 household members
| Surname | Alexander |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Village of Waverly |
| 1935 Residence (County) | Pike |
| Occupation | Mechanic auto |
| Industry | own account |
| Class of Worker | OA |
| Hours Worked | 6 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Alexander across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alonzo Alexander (~0.92 confidence) and mother Carrie Alexander (~0.92 confidence) and mother Caryata Alexander (~0.92 confidence) and mother James Alexander (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alonzo Alexander
b. ~1858
Source father
● Household
· direct · ~0.92
Mother
Carrie Alexander
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
Caryata Alexander
b. ~1867
Source mother
● Household
· direct · ~0.92
Mother
James Alexander
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Alexander
Son · 1940 · age 30 · b. ~1910 · Ohio
★ 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 — Pike-County, Ohio
Open full size
1940 US Federal Census — Pike-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03129-00275)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jerry C Schwartz | 5 | Head | — | Ohio |
| 42 | Clifford Bennett | 25 | Head | Laborer | Ohio |
| 43 | Verna Bennett | 18 | Wife | — | Ohio |
| 44 | Joan Bennett | 0 | Daughter | — | Ohio |
| 45 | Angeline Mccoy | 30 | Head | — | Ohio |
| 46 | Elsie Mccoy | 35 | Daughter | Seamstress | Ohio |
| 47 | Ruby Mccoy | 13 | Daughter | — | Ohio |
| 48 | Jean Mccoy | 8 | Daughter | — | Ohio |
| 49 | Minnie Mccoy | 7 | Daughter | — | Ohio |
| 50 | Deltha Mccoy | 4 | Daughter | — | Ohio |
| 51 | Charles Dyke | 37 | Head | Laborer | Ohio |
| 52 | Viola Dyke | 38 | Wife | Restaurant Manager | Ohio |
| 53 | Richard C Dyke | 15 | Son | Circulator | Ohio |
| 54 | David J Dyke | 11 | Son | — | Ohio |
| 55 | Robert Lee Dyke | 9 | Son | — | Ohio |
| 56 | Ray Littlejohn | 34 | Head | Laborer | Ohio |
| 57 | Mae Littlejohn | 32 | Wife | — | Ohio |
| 58 | Jeanette Littlejohn | 13 | Daughter | — | Ohio |
| 59 | Wilma Jean Littlejohn | 11 | Daughter | — | Ohio |
| 60 | Truman Armstrong | 68 | Uncle | — | Ohio |
| 61 | Caryata Alexander | 73 | Head | — | Ohio |
| 62 | Robert Alexander THIS PERSON | 30 | Son | Mechanic Auto | Ohio |
| 63 | Clarence Hiebel | 45 | Head | Passenger Conductor | Ohio |
| 64 | Minnie Hiebel | 37 | Wife | — | Ohio |
| 65 | Wilma Hiebel | 7 | Daughter | — | Ohio |
| 66 | Joseph Hiebel | 3 | Son | — | Ohio |
| 67 | Joyce Hiebel | 2 | Daughter | — | Ohio |
| 68 | Louis Hoeck | 53 | Head | Teacher | Ohio |
| 69 | George Hoeck | 24 | Son | Attendant | Ohio |
| 70 | James Smith | 33 | Head | Laborer | Ohio |
| 71 | Pauline Smith | 27 | Wife | — | Ohio |
| 72 | Larry Smith | 3 | Son | — | Ohio |
| 73 | Susan Smith | 2 | Daughter | — | Ohio |
| 74 | Conrad Parkard | 42 | Head | Supervisor | Alabama |
| 75 | Violet Parkard | 26 | Wife | — | Ohio |
| 76 | Floyd Valley | 48 | Head | Owner Operator | Ohio |
| 77 | Hazel Valley | 44 | Wife | — | Ohio |
| 78 | William Valley | 21 | Son | Clerk | Ohio |
| 79 | Charles Haberman | 62 | Head | Owner | Ohio |
| 80 | Mabel Haberman | 57 | Wife | — | Ohio |
Pedigree Summary
Robert
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)