WB
William Boyd — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lucas-County, Iowa
Our Model Tree links this William Boyd across the 1910, 1920, 1930 and 1940 US Censuses in Lucas-County, Iowa (XGBoost, ~Confirmed), with identified parents William & Bertha — first a head (b.~1910), then head of a 5-person household.
Age 30
b. ~1910
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lucas-County, Iowa |
| Surname | Boyd |
| Given Name | William S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lucas |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Whitebreast Township |
| Est. Birth Year | ~1910 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Boyd | Head | — | 30 | ~1910 |
| Edwin Boyd | Son | — | 7 | ~1933 |
| Jackie Boyd | Son | — | 1 | ~1939 |
| Marvin Boyd | Son | — | 5 | ~1935 |
| Cecil Boyd | Spouse | — | 27 | ~1913 |
Census Appearances
1910
Lucas, Iowa
Son, age
Lucas, Iowa · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyd |
| Given Name | William S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Lucas, Iowa
Son, age 10
Lucas, Iowa · implied b. ~1910 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyd |
| Given Name | William S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Lucas, Iowa
Son, age 19
Lucas, Iowa · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyd |
| Given Name | William S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Occupation | Driller |
| Industry | Oil Driller |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Lucas-County, Iowa
Head, age 30
Lucas-County, Iowa · implied b. ~1910 — 5 household members
| Surname | Boyd |
| Given Name | William S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lucas |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Boyd across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Boyd (~0.92 confidence) and mother Bertha Boyd (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Boyd
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Bertha Boyd
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Boyd
Head · 1940 · age 30 · b. ~1910 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lucas-County, Iowa
Open full size
1940 US Federal Census — Lucas-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01178-00770)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Herbert Stansberry | 46 | Head | Farmer | Iowa |
| 42 | Lucy Stansberry | 42 | Wife | — | Iowa |
| 43 | Daryl Stansberry | 20 | Son | Farmer | Iowa |
| 44 | Clifford Stansberry | 18 | Son | — | Iowa |
| 45 | Marjorie Stansberry | 16 | Daughter | — | Iowa |
| 46 | Gerald Stansberry | 15 | Son | — | Iowa |
| 47 | Keith Stansberry | 13 | Son | — | Iowa |
| 48 | Janet Stansberry | 11 | Daughter | — | Iowa |
| 49 | Joan Stansberry | 9 | Daughter | — | Iowa |
| 50 | Audrey Stansberry | 8 | Daughter | — | Iowa |
| 51 | Lucille Stansberry | 5 | Daughter | — | Iowa |
| 52 | Beverly Stansberry | 3 | Daughter | — | Iowa |
| 53 | Carolyn Stansberry | 0 | Daughter | — | Iowa |
| 54 | Marilyn Stansberry | 0 | Daughter | — | Iowa |
| 55 | Dean W. Vincent | 22 | Head | Farmer | Iowa |
| 56 | Hazel N. Vincent | 21 | Wife | — | Wisconsin |
| 57 | Deanna M. Vincent | 0 | Daughter | — | Iowa |
| 58 | Edward Hayworth | 65 | Head | Farmer | Iowa |
| 59 | Bellie Hayworth | 61 | Wife | — | Iowa |
| 60 | Joseph H. Mancey | 70 | Head | Farmer | Iowa |
| 61 | Kate L. Mancey | 59 | Wife | — | Iowa |
| 62 | Roy Pennington | 31 | Head | Farmer | Iowa |
| 63 | Lena E. Pennington | 33 | Wife | — | Iowa |
| 64 | Floyd F. Bell | 50 | Head | Farmer | Iowa |
| 65 | Bertha M. Bell | 51 | Wife | — | Iowa |
| 66 | Lloyd D. Shannon | 43 | Head | Farmer | Iowa |
| 67 | Gladys M. Shannon | 39 | Wife | — | Iowa |
| 68 | James D. Shannon | 17 | Son | Farm Laborer | Iowa |
| 69 | Charles A. Shannon | 15 | Son | Farm Laborer | Iowa |
| 70 | Elma I. Shannon | 13 | Daughter | — | Iowa |
| 71 | Iris M. Shannon | 11 | Daughter | — | Iowa |
| 72 | Leigh D. Shannon | 7 | Son | — | Iowa |
| 73 | Mary L. Shannon | 3 | Daughter | — | Iowa |
| 74 | William S. Boyd THIS PERSON | 30 | Head | Farmer | Iowa |
| 75 | Cecil L. Boyd | 27 | Wife | — | Iowa |
| 76 | Edwin K. Boyd | 7 | Son | — | Iowa |
| 77 | Marvin W. Boyd | 5 | Son | — | Iowa |
| 78 | Jackie E. Boyd | 1 | Son | — | Iowa |
| 79 | Andrew Show | 77 | Head | Farmer | Illinois |
| 80 | Charles Tatman | 60 | Head | Farmer | Nebraska |
Related Census Records
Pedigree Summary
William
Gen 1 · 2 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)