RB
Robert Blair — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Guilford, North Carolina
Our Model Tree links this Robert Blair across the 1930 and 1940 US Censuses in Guilford, North Carolina (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 10-person household.
Age 6
b. ~1924
Male
Son
Born: North Carolina
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Guilford, North Carolina |
| Surname | Blair |
| Given Name | Robert H. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | North Carolina |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Additional Details | |
| Occupation | none |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
| Township / Ward | Bessemer Village |
| Est. Birth Year | ~1924 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Mamie Blair | Spouse | — | 41 | ~1889 |
| Robert Blair | Son | — | 6 | ~1924 |
| Mary Blair | Daughter | — | 13 | ~1917 |
| James Blair | Son | — | 10 | ~1920 |
| Velna Blair | Daughter | — | 15 | ~1915 |
| Jean Blair | Daughter | — | 1 | ~1929 |
| Ruby Blair | Daughter | — | 18 | ~1912 |
| Carl Blair | Son | — | 4 | ~1926 |
| James Blair | Head | — | 39 | ~1891 |
| Doris Blair | Daughter | — | 8 | ~1922 |
Census Appearances
1930
Guilford, North …
Son, age 6
Guilford, North Carolina · implied b. ~1924 — 10 household members
| Surname | Blair |
| Given Name | Robert H. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | North Carolina |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Occupation | none |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
1940
Guilford-County, North …
Son, age 18
Guilford-County, North Carolina · implied b. ~1922 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blair |
| Given Name | Robie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | North Carolina |
| 1935 Residence (City) | Greensboro City |
| 1935 Residence (County) | Guilford |
| Highest Grade | S-3 |
| 1935 Residence | Same house |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
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 · 1930 · age 6 · b. ~1924 · North Carolina
★ You are viewing this record
Sibling
Velna Blair
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Blair
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Blair
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruby Blair
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Blair
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Blair
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Blair
Sibling · 1930 · age 4
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
1930 US Federal Census — Guilford, North Carolina
Open full size
1930 US Federal Census — Guilford, North Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1695unit:0504)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Lillian M. Brown | 0 | daughter | None | North Carolina |
| 52 | James M. Blair | 39 | head | Deliveryman | North Carolina |
| 53 | Mamie Blair | 41 | wife | None | North Carolina |
| 54 | Ruby J. Blair | 18 | daughter | Operator | North Carolina |
| 55 | Velna E. Blair | 15 | daughter | None | North Carolina |
| 56 | Mary Z. Blair | 13 | daughter | None | North Carolina |
| 57 | James M. Jr. Blair | 10 | son | None | North Carolina |
| 58 | Doris L. Blair | 8 | daughter | None | North Carolina |
| 59 | Robert H. Blair THIS PERSON | 6 | son | None | North Carolina |
| 60 | Carl D. Blair | 4 | son | None | North Carolina |
| 61 | Jean C. Blair | 1 | daughter | None | North Carolina |
| 62 | Will R. Doss | 46 | head | Manager | Virginia |
| 63 | Tillie Doss | 46 | wife | None | Virginia |
| 64 | Guy B. Doss | 23 | son | Collector | Virginia |
| 65 | Ruth Doss | 17 | daughter | None | Virginia |
| 66 | Hazel Doss | 13 | daughter | None | North Carolina |
| 67 | Fred Doss | 10 | son | None | North Carolina |
| 68 | Harry E. Williams | 27 | head | Machinist | North Carolina |
| 69 | Eleanor Williams | 25 | wife | None | North Carolina |
| 70 | Edna Williams | 14 | daughter | None | North Carolina |
| 71 | Frances Williams | 12 | daughter | None | North Carolina |
| 72 | Lillian Williams | 9 | daughter | None | North Carolina |
| 73 | Harry E. Jr. Williams | 7 | son | None | North Carolina |
| 74 | Marie Williams | 2 | daughter | None | North Carolina |
| 75 | William L. Martin | 43 | head | Salesman | North Carolina |
| 76 | Emma Martin | 41 | wife | None | North Carolina |
| 77 | Bain Martin | 20 | son | Salesman | North Carolina |
| 78 | Louise Martin | 18 | daughter | None | North Carolina |
| 79 | William L. Jr. Martin | 14 | son | None | North Carolina |
| 80 | Clark Martin | 12 | son | None | North Carolina |
| 81 | Riley F. Payne | 46 | head | None | Virginia |
| 82 | Rosa M. Payne | 22 | daughter | Binder | North Carolina |
| 83 | Boyd Payne | 20 | son | Knitter | North Carolina |
| 84 | Lelia Payne | 18 | daughter | None | North Carolina |
| 85 | Annie Payne | 12 | daughter | None | North Carolina |
| 86 | Herbert Payne | 9 | son | None | North Carolina |
| 87 | Ruby Payne | 7 | son | None | North Carolina |
| 88 | Lester Mccall | 29 | head | Weaver | North Carolina |
| 89 | Lillie Mccall | 28 | wife | None | North Carolina |
| 90 | Alfred Mccall | 4 | son | None | Virginia |
| 91 | Lillie Mccall | 3 | daughter | None | North Carolina |
| 92 | Ernest W. Mccall | 32 | head | Weaver | North Carolina |
| 93 | Ella Mccall | 30 | wife | Seamstress | North Carolina |
| 94 | Bronze Mccall | 19 | son | Laborer | North Carolina |
| 95 | Nettie D. Glass | 46 | head | None | Tennessee |
| 96 | Harry Glass | 23 | son | None | North Carolina |
| 97 | George Glass | 20 | son | None | North Carolina |
| 98 | Dewey Payne | 25 | boarder | Deliveryman | North Carolina |
| 99 | Ralph Valentine | 29 | boarder | Stonecutter | North Carolina |
| 100 | Bobby Robertson | 23 | boarder | Office Girl | North Carolina |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)