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William Dunlap — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Crosby-County, Texas
Our Model Tree links this William Dunlap across the 1930 and 1940 US Censuses in Crosby-County, Texas (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 6-person household.
Age 13
b. ~1927
Male
Son
Born: Texas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Crosby-County, Texas |
| Surname | Dunlap |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Commissioners Precinct 3 (Pt. of) |
| 1935 Residence (County) | Crosby |
| Additional Details | |
| Highest Grade | G 7 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Township / Ward | Commissioners Precinct 3 Pt Of |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| John Dunlap | Son | — | 15 | ~1925 |
| William Dunlap | Head | — | 41 | ~1899 |
| Frank Dunlap | Son | — | 10 | ~1930 |
| Melvin Dunlap | Son | — | 7 | ~1933 |
| Mary Dunlap | Spouse | — | 36 | ~1904 |
| William Dunlap | Son | — | 13 | ~1927 |
Census Appearances
1930
Crosby, Texas
Son, age 2
Crosby, Texas · implied b. ~1928 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunlap |
| Given Name | William G |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1940
Crosby-County, Texas
Son, age 13
Crosby-County, Texas · implied b. ~1927 — 6 household members
| Surname | Dunlap |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Texas |
| 1935 Residence (City) | Commissioners Precinct 3 (Pt. of) |
| 1935 Residence (County) | Crosby |
| Highest Grade | G 7 |
| 1935 Residence | Same place |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 William Dunlap across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Dunlap
Son · 1940 · age 13 · b. ~1927 · Texas
★ You are viewing this record
Sibling
Frank Dunlap
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Dunlap
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Dunlap
Sibling · 1940 · age 7
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 — Crosby-County, Texas
Open full size
1940 US Federal Census — Crosby-County, Texas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04014-00308)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clyde D. Anderson | 38 | Head | Farmer | Texas |
| 42 | Imogene Anderson | 37 | Wife | Laborer | Texas |
| 43 | C. R. Milton | 20 | Nephew | Laborer | Texas |
| 44 | Leda Fern Milton | 10 | Niece | — | Texas |
| 45 | Howard J. Mitchell | 30 | Head | Laborer | Texas |
| 46 | Beatrice Mitchell | 27 | Wife | — | Texas |
| 47 | Taft Gene Mitchell | 5 | Son | — | Texas |
| 48 | Harlan Mitchell | 2 | Son | — | Texas |
| 49 | Albert M. Oats | 48 | Head | Farmer | Texas |
| 50 | Bird Oats | 45 | Wife | — | Texas |
| 51 | Jean Oats | 28 | Daughter | — | Texas |
| 52 | Oscar Oats | 26 | Son | — | Texas |
| 53 | Bobby Oats | 24 | Son | Laborer | Texas |
| 54 | Doris Oats | 22 | Daughter | Teacher | Texas |
| 55 | Charlie Oats | 20 | Son | Laborer | Texas |
| 56 | Tom Oats | 18 | Son | Laborer | Texas |
| 57 | Scott Oats | 16 | Son | — | Texas |
| 58 | Billy Oats | 14 | Son | — | Texas |
| 59 | Ted Oats | 12 | Son | — | Texas |
| 60 | Sue Oats | 10 | Daughter | — | Texas |
| 61 | Hamilton B. Doom | 51 | Head | Farmer | Texas |
| 62 | Mollie Doom | 51 | Wife | — | Texas |
| 63 | Bernard Doom | 26 | Son | Laborer | Texas |
| 64 | Helen Doom | 21 | Daughter | — | Texas |
| 65 | Marjorie Marie Doom | 18 | Daughter | — | Texas |
| 66 | Louise Doom | 11 | Daughter | — | Texas |
| 67 | Melvin Doom | 9 | Son | — | Texas |
| 68 | Sylvan Newman | 34 | Head | Teacher | Texas |
| 69 | Mabel Newman | 33 | Wife | Teacher | Texas |
| 70 | Edith Newman | 16 | Niece | — | Texas |
| 71 | Velma I. Cummings | 30 | Head | Teacher | Texas |
| 72 | Vernon Cummings | 28 | Wife | Teacher | Texas |
| 73 | Elga Lynn Cummings | 9 | Son | — | Texas |
| 74 | Idalia Cummings | 5 | Son | — | Texas |
| 75 | William S. Dunlap | 41 | Head | Principal | Texas |
| 76 | Mary Dunlap | 36 | Wife | — | Texas |
| 77 | John Dunlap | 15 | Son | — | Texas |
| 78 | William Jr. Dunlap THIS PERSON | 13 | Son | — | Texas |
| 79 | Frank Dunlap | 10 | Son | — | Texas |
| 80 | Melvin Dunlap | 7 | Son | — | Texas |
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)