RB
Robert Blair — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Portage-County, Ohio
Our Model Tree links this Robert Blair across the 1930 and 1940 US Censuses in Portage-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 13-person household.
Age 15
b. ~1925
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Portage-County, Ohio |
| Surname | Blair |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | New Milford Start line 3 |
| 1935 Residence (County) | Portage |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | New Milford Start Line 3 |
| Est. Birth Year | ~1925 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Delbert Blair | Son | — | 9 | ~1931 |
| Kenneth Blair | Son | — | 4 | ~1936 |
| Norma Blair | Daughter | — | 6 | ~1934 |
| Bruce Blair | Son | — | ~1940 | |
| Claud Sanders | Other | — | 25 | ~1915 |
| Robert Blair | Son | — | 15 | ~1925 |
| Gerrit Blair | Head | — | 44 | ~1896 |
| Ronald Blair | Son | — | 11 | ~1929 |
| Louise Blair | Daughter | — | 17 | ~1923 |
| Melba Sanders | Daughter | — | 19 | ~1921 |
| Patricia Sanders | Daughter | — | 1 | ~1939 |
| Martha Blair | Spouse | — | 40 | ~1900 |
| Dewey Blair | Son | — | 13 | ~1927 |
Census Appearances
1930
Portage, Ohio
Son, age 5
Portage, Ohio · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | West Virginia |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Portage-County, Ohio
Son, age 15
Portage-County, Ohio · implied b. ~1925 — 13 household members
| Surname | Blair |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | New Milford Start line 3 |
| 1935 Residence (County) | Portage |
| Income (1939) | 0 |
| Highest Grade | No 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 Blair across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Blair
Son · 1940 · age 15 · b. ~1925 · Ohio
★ You are viewing this record
Sibling
Louise Blair
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norma Blair
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melba Sanders
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bruce Blair
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Blair
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Sanders
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delbert Blair
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Blair
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dewey Blair
Sibling · 1940 · age 13
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 — Portage-County, Ohio
Open full size
1940 US Federal Census — Portage-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03131-00532)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Dunn | 45 | Son | Abraphmith | Ohio |
| 2 | Al Dixon | 67 | Father | Fire Builder | Pennsylvania |
| 3 | Bruno Giordanengo | 37 | Head | — | Pennsylvania |
| 4 | Antonia Giordanengo | 33 | Wife | — | Pennsylvania |
| 5 | Anthony Giordanengo | 15 | Son | — | Pennsylvania |
| 6 | Charles Giordanengo | 13 | Son | — | Pennsylvania |
| 7 | Nellie Robinson | 58 | Head | Seamstress | Ohio |
| 8 | Joseph Stawierski | 44 | Head | Farmer | Poland |
| 9 | Sophie Stawierski | 43 | Wife | — | Poland |
| 10 | Alex Stawierski | 48 | Laborer | Laborer | Poland |
| 11 | Gerrit Blair | 44 | Head | Laborer | W. Virginia |
| 12 | Martha Blair | 40 | Wife | — | W. Virginia |
| 13 | Louise Blair | 17 | Daughter | — | Ohio |
| 14 | Robert Blair THIS PERSON | 15 | Son | — | Ohio |
| 15 | Dewey Blair | 13 | Son | — | Ohio |
| 16 | Ronald Blair | 11 | Son | — | Ohio |
| 17 | Delbert Blair | 9 | Son | — | Ohio |
| 18 | Norma Blair | 6 | Daughter | — | Ohio |
| 19 | Kenneth Blair | 4 | Son | — | W. Virginia |
| 20 | Bruce Blair | 0 | Son | — | W. Virginia |
| 21 | Claud Sanders | 25 | Son in law | Farmer | W. Virginia |
| 22 | Melba Sanders | 19 | Daughter | — | W. Virginia |
| 23 | Patricia Ann Sanders | 1 | Daughter | — | W. Virginia |
| 24 | Vito Nardo | 44 | Head | — | Italy |
| 25 | Dolores Nardo | 10 | Daughter | — | Pennsylvania |
| 26 | Hellen E. Nardo | 9 | Daughter | — | Pennsylvania |
| 27 | Anna Nardo | 28 | Wife | — | Pennsylvania |
| 28 | Mike Esposito | 37 | Head | Section Hand | Italy |
| 29 | Josephine Esposito | 27 | Wife | — | Pennsylvania |
| 30 | Rose Esposito | 12 | Daughter | — | Ohio |
| 31 | Mary M. Esposito | 8 | Daughter | — | Ohio |
| 32 | Carmelo A. Esposito | 6 | Son | — | Ohio |
| 33 | Bettie A. Esposito | 4 | Daughter | — | Ohio |
| 34 | Carmelo A. Esposito | 73 | Father | Railroad | Italy |
| 35 | Gaetano Esposito | 49 | Head | Trackman | Italy |
| 36 | Rosa Esposito | 48 | Wife | — | Italy |
| 37 | Marion Esposito | 24 | Son | Stationary Engineer | Ohio |
| 38 | Albert Esposito | 20 | Son | New Worker | Ohio |
| 39 | Lewis Esposito | 15 | Son | — | Ohio |
| 40 | Tresa Esposito | 13 | Daughter | — | Ohio |
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)