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John Chapman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegany-County, Maryland
Our Model Tree links this John Chapman across the 1920, 1930 and 1940 US Censuses in Allegany-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1871), then head of a 8-person household.
Age 69
b. ~1871
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegany-County, Maryland |
| Surname | Chapman |
| Given Name | John Dr. S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Cumberland City |
| 1935 Residence (County) | Allegany |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Cumberland City |
| Est. Birth Year | ~1871 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Leola Chapman | Daughter | — | 29 | ~1911 |
| Florence Chapman | Daughter | — | 33 | ~1907 |
| Josephine Chapman | Daughter | — | 31 | ~1909 |
| Bernadette Chapman | Daughter | — | 17 | ~1923 |
| John Chapman | Head | — | 69 | ~1871 |
| Francis Chapman | Son | — | 19 | ~1921 |
| George Chapman | Son | — | 26 | ~1914 |
| Catherine Chapman | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Allegany, Maryland
Head, age 49
Allegany, Maryland · implied b. ~1871 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1887 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Year of Naturalization | 1894 |
| Birthplace (normalized) | scotland |
1930
Allegany, Maryland
Head, age 59
Allegany, Maryland · implied b. ~1871 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1882 |
| Age at First Marriage | 27 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Watchman |
| Industry | Hotel |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 10.00 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Allegany-County, Maryland
Head, age 69
Allegany-County, Maryland · implied b. ~1871 — 8 household members
| Surname | Chapman |
| Given Name | John Dr. S |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Cumberland City |
| 1935 Residence (County) | Allegany |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Chapman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Chapman
Head · 1940 · age 69 · b. ~1871 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allegany-County, Maryland
Open full size
1940 US Federal Census — Allegany-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01498-00410)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Creighton | 47 | Housekeeper | Housekeeper | Maryland |
| 2 | Mary Ann Kolb | 75 | Head | — | Maryland |
| 3 | Adelia M Morris | 40 | Daughter | Saleswoman | Maryland |
| 4 | Owen Noel Morris | 13 | Grandson | — | Maryland |
| 5 | George C Beckwith | 47 | Head | Custodian | Pennsylvania |
| 6 | Bertha May Beckwith | 47 | Wife | — | Maryland |
| 7 | Frances Beckwith | 25 | Daughter | Saleswoman | Maryland |
| 8 | Charles Beckwith | 18 | Son | — | Maryland |
| 9 | Charles William Coy | 61 | Father-in-law | Labour | W. Virginia |
| 10 | Geneva Sowers | 50 | Head | — | Pennsylvania |
| 11 | Perry E Sowers | 40 | Son | Shoe Repair | Pennsylvania |
| 12 | Christina A Sowers | 37 | Daughter-in-law | — | W. Virginia |
| 13 | Richard E Sowers | 18 | Grandson | Gardner | W. Virginia |
| 14 | Lorraine E Sowers | 15 | Granddaughter | — | Maryland |
| 15 | Marie V Sowers | 9 | Granddaughter | — | Maryland |
| 16 | Louis Minnick | 62 | Head | Bricklayer | Maryland |
| 17 | Etta Minnick | 70 | Wife | — | Maryland |
| 18 | Helen Phillips | 35 | Daughter | — | Maryland |
| 19 | John Phillips | 38 | Son-in-law | Fireman | Maryland |
| 20 | Doris Phillips | 15 | Granddaughter | — | Maryland |
| 21 | Patricia Phillips | 5 | Granddaughter | — | Maryland |
| 22 | John Dr. S Chapman THIS PERSON | 69 | Head | — | Scotland |
| 23 | Catherine Chapman | 60 | Wife | — | Maryland |
| 24 | Florence Chapman | 33 | Daughter | Clerk | Maryland |
| 25 | Josephine Chapman | 31 | Daughter | Teacher | Maryland |
| 26 | Leola Chapman | 29 | Daughter | Clerk | Maryland |
| 27 | George Chapman | 26 | Son | Brakeman | Maryland |
| 28 | Francis A Chapman | 19 | Son | — | Maryland |
| 29 | Bernadette Chapman | 17 | Daughter | — | Maryland |
| 30 | Hanson Crabtree | 28 | Head | Cheesing | Maryland |
| 31 | Sylvia Crabtree | 24 | Wife | Sorter | Maryland |
| 32 | Thomas D Crabtree | 6 | Son | — | Maryland |
| 33 | Hanson L Crabtree | 4 | Son | — | Maryland |
| 34 | Sylvia Ruth Crabtree | 3 | Daughter | — | Maryland |
| 35 | Paul R Crabtree | 20 | Brother | Hired Hand | Maryland |
| 36 | Riley P Twigg | 61 | Head | Clerk | Maryland |
| 37 | Margaret Twigg | 35 | Daughter | — | Maryland |
| 38 | Clarence Twigg | 32 | Son | Paper Hanger | Maryland |
| 39 | Lester Twigg | 23 | Son | Usher | Maryland |
| 40 | Helen Twigg | 22 | Daughter | N.Y.A. Sewing Room | Maryland |
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)