RB
Robert Boyd — 1940 US Census Record
Model Tree available1940 United States Federal Census · Guernsey-County, Ohio
Our Model Tree links this Robert Boyd across the 1920, 1930 and 1940 US Censuses in Guernsey-County, Ohio (XGBoost, ~Confirmed), with identified parents George & Mabel — first a son (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Guernsey-County, Ohio |
| Surname | Boyd |
| Given Name | Robert W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Guernsey |
| Additional Details | |
| Occupation | Electrician |
| Industry | General |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 314 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Electrician |
| Township / Ward | Cambridge |
| Est. Birth Year | ~1915 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| George Boyd | Head | — | 52 | ~1888 |
| Robert Boyd | Son | — | 25 | ~1915 |
| Mahala Boyd | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Guernsey, Ohio
Son, age 5
Guernsey, Ohio · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyd |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Speaks English | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Guernsey, Ohio
Son, age 15
Guernsey, Ohio · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyd |
| Given Name | Robert B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Guernsey-County, Ohio
Son, age 25
Guernsey-County, Ohio · implied b. ~1915 — 3 household members
| Surname | Boyd |
| Given Name | Robert W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cambridge |
| 1935 Residence (County) | Guernsey |
| Occupation | Electrician |
| Industry | General |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 314 |
| Highest Grade | H 8 |
| 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 Boyd across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Boyd (~0.92 confidence) and mother Mabel Boyd (~0.92 confidence) and mother Mahala Boyd (~0.92 confidence) and mother Mahala Boyd (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Boyd
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Mabel Boyd
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mahala Boyd
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mahala Boyd
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Boyd
Son · 1940 · age 25 · b. ~1915 · 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 — Guernsey-County, Ohio
Open full size
1940 US Federal Census — Guernsey-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03075-00039)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Martin O Hughes | 26 | Head | Moulder | Ohio |
| 42 | Clarice L Hughes | 24 | Wife | — | Ohio |
| 43 | Martin Jr Hughes | 2 | Son | — | Ohio |
| 44 | Charles F. Kirkman | 56 | Head | Agent | Ohio |
| 45 | Maude Kirkman | 55 | Wife | — | Ohio |
| 46 | Bryan N Jones | 32 | Boarder | Nipper | Ohio |
| 47 | Jeannette Jones | 32 | Wife | Stenog-For | Ohio |
| 48 | James H. Eakin | 55 | Head | Proprietor | — |
| 49 | Luetta Eakin | 46 | Wife | — | Ohio |
| 50 | Brooks H Eakin | 22 | Son | Machine Oper | Ohio |
| 51 | James H Eakin | 17 | Son | Machine Oper | Ohio |
| 52 | George W Boyd | 52 | Head | Electrician | Ohio |
| 53 | Mahala R Boyd | 51 | Wife | — | Ohio |
| 54 | Robert W Boyd THIS PERSON | 25 | Son | Electrician | Ohio |
| 55 | Wilbert C Edmonds | 53 | Head | Gauger | West Virginia |
| 56 | Bernice Edmonds | 48 | Wife | — | Ohio |
| 57 | Mary E. Edmonds | 21 | Daughter | Saleslady | Ohio |
| 58 | Ruth P. Edmonds | 16 | Daughter | — | Ohio |
| 59 | Jane E Edmonds | 13 | Daughter | — | Ohio |
| 60 | Martha A Edmonds | 12 | Daughter | — | Ohio |
| 61 | Edward W Wilson | 77 | Head | Carpenter | Ohio |
| 62 | Ella M Wilson | 72 | Wife | — | Ohio |
| 63 | Grant W. Medick | 65 | Head | — | Ohio |
| 64 | Martha F Medick | 60 | Wife | — | Ohio |
| 65 | Samuel C. Carnes | 28 | Head | Attorney | Ohio |
| 66 | Nilda K Carnes | 28 | Wife | — | Ohio |
| 67 | Samuel C. Jr Carnes | 2 | Son | — | Ohio |
| 68 | Harry W Hammond | 32 | Head | Foreman | Ohio |
| 69 | Helen I Hammond | 28 | Wife | — | Ohio |
| 70 | Donald G Agnew | 44 | Head | Manager | Maryland |
| 71 | Hazel D Agnew | 44 | Wife | — | Ohio |
| 72 | Donald S Agnew | 22 | Son | — | Ohio |
| 73 | Milton W Stiles | 67 | Head | Chief Cashier | Ohio |
| 74 | Clemma A Stiles | 64 | Wife | — | Ohio |
| 75 | Harlan E Addison | 42 | Son-in-law | Company Clerk | Ohio |
| 76 | Christine M Addison | 17 | Grand-Daughter | — | Ohio |
| 77 | Herschel J Hancock | 44 | Head | Contractor | Kentucky |
| 78 | Loretta C Hancock | 45 | Wife | — | Missouri |
| 79 | Frank W Perone | 38 | Head | Pressman | Ohio |
| 80 | Mary Perone | 39 | Wife | — | Ohio |
Related Census Records
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)