WC
William Chapman — 1940 US Census Record
Model Tree available1940 United States Federal Census · Montgomery-County, Maryland
Our Model Tree links this William Chapman across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Maryland (XGBoost, ~Confirmed), with identified parents Lillie & Clarence — first a head (b.~1899), then head of a 9-person household.
Age 41
b. ~1899
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Maryland |
| Surname | Chapman |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Capitol View |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Church Bldg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Carpenter |
| Township / Ward | Capitol View |
| Est. Birth Year | ~1899 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Chapman | Daughter | — | 17 | ~1923 |
| Esther Chapman | Daughter | — | 11 | ~1929 |
| William Chapman | Head | — | 41 | ~1899 |
| James Chapman | Son | — | 1 | ~1939 |
| Benjamin Chapman | Son | — | 9 | ~1931 |
| Richard Chapman | Son | — | 8 | ~1932 |
| Clarence Chapman | Son | — | 13 | ~1927 |
| Alvin Chapman | Son | — | 15 | ~1925 |
| Esther Chapman | Spouse | — | 36 | ~1904 |
Census Appearances
1920
Montgomery, Maryland
Son, age 21
Montgomery, Maryland · implied b. ~1899 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | William A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Machinist |
| Industry | Automobiles |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Montgomery, Maryland
Head, age 30
Montgomery, Maryland · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | William H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 24 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Machinist |
| Industry | Automobile |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Montgomery-County, Maryland
Head, age 41
Montgomery-County, Maryland · implied b. ~1899 — 9 household members
| Surname | Chapman |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Capitol View |
| 1935 Residence (County) | Montgomery |
| Occupation | Carpenter |
| Industry | Church Bldg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1440 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Chapman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Lillie Chapman (~0.92 confidence) and father Clarence Chapman (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Lillie Chapman
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Clarence Chapman
b. ~1878
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Chapman
Head · 1940 · age 41 · b. ~1899 · Maryland
★ 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 — Montgomery-County, Maryland
Open full size
1940 US Federal Census — Montgomery-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01555-00457)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thelma Enerman | 26 | Wife | — | Virginia |
| 42 | Bobby Jean Enerman | 7 | Daughter | — | Dist. Columbia |
| 43 | Fred Jr. Enerman | 4 | Son | — | Dist. Columbia |
| 44 | Marguerite Cooley | 60 | Mother-in-law | — | Maryland |
| 45 | Harvey Wilson | 41 | Head | Carpenter | Michigan |
| 46 | Eleanor Wilson | 36 | Wife | — | Iowa |
| 47 | Allen Wilson | 16 | Son | — | Michigan |
| 48 | Lorena Wilson | 15 | Daughter | — | Michigan |
| 49 | Bessie Wilson | 14 | Daughter | — | Michigan |
| 50 | Beulah Wilson | 11 | Daughter | — | Michigan |
| 51 | John O Holton | 33 | Head | Inspector | Oklahoma |
| 52 | Dorothy Holton | 30 | Wife | — | Ohio |
| 53 | Robert Holton | 9 | Son | — | Dist. Columbia |
| 54 | Carol Holton | 3 | Daughter | — | Dist. Columbia |
| 55 | William Chapman THIS PERSON | 41 | Head | Carpenter | Maryland |
| 56 | Esther Chapman | 36 | Wife | — | Dist. Columbia |
| 57 | Mary Chapman | 17 | Daughter | — | Virginia |
| 58 | Alvin Chapman | 15 | Son | — | Virginia |
| 59 | Clarence Chapman | 13 | Son | — | Maryland |
| 60 | Esther Jr. Chapman | 11 | Daughter | — | Maryland |
| 61 | Benjamin Chapman | 9 | Son | — | Maryland |
| 62 | Richard Chapman | 8 | Son | — | Maryland |
| 63 | James Chapman | 1 | Son | — | Maryland |
| 64 | Carl Remies | 47 | Head | Pastor | Pennsylvania |
| 65 | Margaret Remies | 35 | Wife | — | New Jersey |
| 66 | Carolina Remies | 8 | Daughter | — | Dist. Columbia |
| 67 | Ruth Remies | 0 | Daughter | — | Maryland |
| 68 | Irving Curtis | 38 | Head | Salesman | Virginia |
| 69 | Viola Curtis | 36 | Wife | — | Maryland |
| 70 | Charles Curtis | 15 | Son | — | Maryland |
| 71 | Eugene Curtis | 14 | Son | — | Maryland |
| 72 | Thomas Curtis | 13 | Son | — | Maryland |
| 73 | Paul Curtis | 10 | Son | — | Maryland |
| 74 | Loren Triplett | 36 | Head | Truck Driver | Virginia |
| 75 | Hilda Triplett | 29 | Wife | — | Virginia |
| 76 | Claressa Triplett | 12 | Daughter | — | Maryland |
| 77 | Holmes Triplett | 9 | Son | — | Maryland |
| 78 | George Triplett | 6 | Son | — | Maryland |
| 79 | Peggy Triplett | 3 | Daughter | — | Maryland |
| 80 | Opal Triplett | 1 | Daughter | — | Maryland |
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)