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John Kirby — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Charlottesville-City-County, Virginia
Our Model Tree links this John Kirby across the 1930 and 1940 US Censuses in Charlottesville-City-County, Virginia (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Male
Son
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Charlottesville-City-County, Virginia |
| Surname | Kirby |
| Given Name | John W. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Charlottesville City |
| 1935 Residence (County) | Albemarle |
| Additional Details | |
| Highest Grade | H 5 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Charlottesville City |
| Est. Birth Year | ~1927 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Shirley Kirby | Daughter | — | 3 | ~1937 |
| Alvin Kirby | Son | — | 9 | ~1931 |
| John Kirby | Son | — | 13 | ~1927 |
| Jemima Kirby | Spouse | — | 40 | ~1900 |
| Randolph Kirby | Son | — | ~1940 | |
| Robert Kirby | Son | — | 5 | ~1935 |
| Joan Kirby | Daughter | — | 11 | ~1929 |
| Early Kirby | Head | — | 36 | ~1904 |
| Thomas Kirby | Son | — | 8 | ~1932 |
| Earley Kirby | Son | — | 15 | ~1925 |
Census Appearances
1930
Albemarle, Virginia
Son, age 3
Albemarle, Virginia · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kirby |
| Given Name | John W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Charlottesville-City-County, Virginia
Son, age 13
Charlottesville-City-County, Virginia · implied b. ~1927 — 10 household members
| Surname | Kirby |
| Given Name | John W. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Charlottesville City |
| 1935 Residence (County) | Albemarle |
| Highest Grade | H 5 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 John Kirby across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Kirby
Son · 1940 · age 13 · b. ~1927 · Virginia
★ You are viewing this record
Sibling
Thomas Kirby
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Kirby
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Kirby
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Randolph Kirby
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earley Kirby
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvin Kirby
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Kirby
Sibling · 1940 · age 5
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 — Charlottesville-City-County, Virginia
Open full size
1940 US Federal Census — Charlottesville-City-County, Virginia
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-04305-00576)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Virginia E. Wood | 17 | daughter | Winder | Virginia |
| 2 | Louise M. Wood | 16 | daughter | — | Virginia |
| 3 | Oscar M. Wood | 41 | head | Steel Worker | Virginia |
| 4 | Nedra M. Wood | 33 | wife | — | Virginia |
| 5 | Eugene W. Wood | 13 | son | — | Virginia |
| 6 | Early F. Kirby | 36 | head | Carpenter | Virginia |
| 7 | Jemima L. V. Kirby | 40 | wife | — | Virginia |
| 8 | Earley F. Jr. Kirby | 15 | son | — | Virginia |
| 9 | John W. Kirby THIS PERSON | 13 | son | — | Virginia |
| 10 | Joan M. Kirby | 11 | daughter | — | Virginia |
| 11 | Alvin M. Kirby | 9 | son | — | Virginia |
| 12 | Thomas G. Kirby | 8 | son | — | Virginia |
| 13 | Robert L. Kirby | 5 | son | — | Virginia |
| 14 | Shirley A. Kirby | 3 | daughter | — | Virginia |
| 15 | Randolph E. Kirby | 0 | son | — | Virginia |
| 16 | Stuart S. Wheeler | 68 | head | Conductor | Virginia |
| 17 | Lily P. Wheeler | 62 | wife | — | Virginia |
| 18 | Lucy M. Wheeler | 37 | daughter | — | Virginia |
| 19 | H. Garth Wheeler | 24 | son | — | Virginia |
| 20 | Daniel G. Wheeler | 21 | son | — | Virginia |
| 21 | Charles S. Wheeler | 19 | son | — | Virginia |
| 22 | Phillip W. Wheeler | 17 | son | — | Virginia |
| 23 | Champ C. Leach | 55 | head | Painter | Virginia |
| 24 | Martha F. Leach | 54 | wife | — | Virginia |
| 25 | Fred B. Leach | 26 | son | Weaver | Virginia |
| 26 | Annie M. Leach | 19 | daughter | Weaver | Virginia |
| 27 | Celie E. Leach | 17 | daughter | — | Virginia |
| 28 | Katherine V. Harris | 29 | daughter | — | Virginia |
| 30 | Fred X. Roberts | 36 | head | Deliveryman | Virginia |
| 31 | Dorothy M. Roberts | 31 | wife | — | Virginia |
| 32 | Rosa M. Roberts | 12 | daughter | — | Virginia |
| 33 | Dorothy M. Roberts | 9 | daughter | — | Virginia |
| 34 | Fred Jr. Roberts | 7 | son | — | Virginia |
| 35 | Calvin V. Roberts | 6 | son | — | Virginia |
| 36 | Howard Wood | 46 | head | Carpenter | Virginia |
| 37 | Eunice F. Wood | 48 | wife | — | Virginia |
| 38 | Phyllis G. Wood | 15 | daughter | — | Virginia |
| 39 | Ethel N. Alexander | 47 | sister | — | Virginia |
| 40 | John S. Marks | 58 | head | Contractor | Virginia |
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)