RM
Robert Montgomery — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ashtabula-County, Ohio
Our Model Tree links this Robert Montgomery across the 1920, 1930 and 1940 US Censuses in Ashtabula-County, Ohio (XGBoost, ~Confirmed), with identified parents Clare & Flora — first a son (b.~1918), then head of a 8-person household.
Age 22
b. ~1918
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ashtabula-County, Ohio |
| Surname | Montgomery |
| Given Name | Robert C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Conneaut Twp. |
| 1935 Residence (County) | Ashtabula |
| Additional Details | |
| Occupation | Brakeman |
| Industry | Steam Rail-road |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 850 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Brakeman |
| Township / Ward | Conneaut Twp |
| Est. Birth Year | ~1918 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Montgomery | Daughter | — | 17 | ~1923 |
| Elizabeth Montgomery | Daughter | — | 10 | ~1930 |
| Hazel Montgomery | Daughter | — | 19 | ~1921 |
| Catherine Montgomery | Daughter | — | 15 | ~1925 |
| Harriett Montgomery | Daughter | — | 12 | ~1928 |
| Carl Montgomery | Head | — | 50 | ~1890 |
| Robert Montgomery | Son | — | 22 | ~1918 |
| Flora Montgomery | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Ashtabula, Ohio
Son, age 1
Ashtabula, Ohio · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Ashtabula, Ohio
Son, age 12
Ashtabula, Ohio · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Montgomery |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Ashtabula-County, Ohio
Son, age 22
Ashtabula-County, Ohio · implied b. ~1918 — 8 household members
| Surname | Montgomery |
| Given Name | Robert C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Conneaut Twp. |
| 1935 Residence (County) | Ashtabula |
| Occupation | Brakeman |
| Industry | Steam Rail-road |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 850 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| 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 Montgomery across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Clare Montgomery (~0.92 confidence) and mother Flora Montgomery (~0.92 confidence) and mother Laura Montgomery (~0.92 confidence) and father Carl Montgomery (~0.92 confidence) and father Earl Montgomery (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clare Montgomery
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Flora Montgomery
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Laura Montgomery
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Carl Montgomery
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Earl Montgomery
b. ~1890
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Montgomery
Son · 1940 · age 22 · b. ~1918 · Ohio
★ You are viewing this record
Sibling
Catherine Montgomery
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harriett Montgomery
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Montgomery
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Montgomery
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Montgomery
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 — Ashtabula-County, Ohio
Open full size
1940 US Federal Census — Ashtabula-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03024-00146)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earl D. Poole | 17 | Son | Carrier | Ohio |
| 2 | Ella D. Poole | 17 | Daughter | — | Ohio |
| 3 | David M. Smiley | 59 | Head | Machinist | Penns |
| 4 | Jennie M. Smiley | 56 | Wife | — | Indiana |
| 5 | George L. Thompson | 58 | Head | Painter + Paperhanger | Ohio |
| 6 | Lettie L. Thompson | 59 | Wife | — | Penns |
| 7 | John H. Trettler | 35 | Head | Painter + Paperhanger | Ohio |
| 8 | Margaret A. Trettler | 34 | Wife | — | Ohio |
| 9 | Jack L. Trettler | 11 | Son | — | Ohio |
| 10 | George W. Groutman | 55 | Head | Boiler Maker | Ohio |
| 11 | Clarence W. Groutman | 46 | Wife | — | Penns |
| 12 | Wesley L. Plahm | 26 | Head | Agent | Ohio |
| 13 | Irene V. Plahm | 26 | Wife | — | Indiana |
| 14 | Joella A. Plahm | 4 | Daughter | — | Penns |
| 15 | Barbara L. Plahm | 2 | Daughter | — | Ohio |
| 16 | Renee C. Plahm | 0 | Daughter | — | Ohio |
| 17 | Carl F. Montgomery | 50 | Head | Crane Engineer | Ohio |
| 18 | Flora L. Montgomery | 52 | Wife | — | Ohio |
| 19 | Robert C. Montgomery THIS PERSON | 22 | Son | Brakeman | Ohio |
| 20 | Hazel C. Montgomery | 19 | Daughter | Clerk | Ohio |
| 21 | Marjorie Montgomery | 17 | Daughter | — | Ohio |
| 22 | Catherine M. Montgomery | 15 | Daughter | — | Ohio |
| 23 | Harriett L. Montgomery | 12 | Daughter | — | Ohio |
| 24 | Elizabeth J. Montgomery | 10 | Daughter | — | Ohio |
| 25 | John C. Scribner | 61 | Head | Proprietor | Ohio |
| 26 | Ethel M. Scribner | 64 | Wife | — | Ohio |
| 27 | Lois A. Scribner | 33 | Daughter | Principal Primary Grades | Ohio |
| 28 | Thomas J. Scribner | 29 | Son | Farmer | Penns |
| 29 | Robert B. Scribner | 21 | Son | Elementary Teacher | Ohio |
| 30 | Adolph Hoffman | 51 | Head | Boiler Maker | Poland |
| 31 | Alice C. Hoffman | 44 | Wife | — | Penns |
| 32 | Orel F. Hicks | 42 | Head | Laborer | Penns |
| 33 | Margaret M. Hicks | 41 | Wife | — | Ohio |
| 34 | Orel Jr. Hicks | 18 | Son | Laborer | Ohio |
| 35 | Helen M. Hicks | 12 | Daughter | — | Ohio |
| 36 | Kenneth R. Hicks | 9 | Son | Laborer | Ohio |
| 37 | Grace E. Wood | 57 | Head | — | Ohio |
| 38 | Kenneth H. Holmes | 2 | Grand-son | — | Ohio |
| 39 | Norman J. Farr | 61 | Boarder | Laborer | Penns |
| 40 | George W. Harmold | 46 | Head | Fireman | Ohio |
Pedigree Summary
Robert + 5 siblings
Gen 1 · 5 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)