MH
Margaret Hamilton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mahoning-County, Ohio
Our Model Tree links this Margaret Hamilton across the 1920, 1930 and 1940 US Censuses in Mahoning-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 4-person household.
Age 54
b. ~1886
Female
Spouse
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mahoning-County, Ohio |
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Youngstown City |
| 1935 Residence (County) | Mahoning |
| Naturalization Status | Naturalized |
| Additional Details | |
| Industry | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Township / Ward | Youngstown City |
| Est. Birth Year | ~1886 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Robt Hamilton | Head | — | 55 | ~1885 |
| Margaret Hamilton | Spouse | — | 54 | ~1886 |
| Robt Hamilton | Son | — | 25 | ~1915 |
| Mary Hamilton | Other | — | 28 | ~1912 |
Census Appearances
1920
Mahoning, Ohio
Spouse, age 35
Mahoning, Ohio · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1912 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Mahoning, Ohio
Other, age 45
Mahoning, Ohio · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 23 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Mahoning-County, Ohio
Spouse, age 54
Mahoning-County, Ohio · implied b. ~1886 — 4 household members
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Youngstown City |
| 1935 Residence (County) | Mahoning |
| Naturalization Status | Naturalized |
| Industry | 0 |
| Highest Grade | 8 |
| 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 Margaret Hamilton across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Hamilton
Spouse · 1940 · age 54 · b. ~1886 · Ohio
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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 — Mahoning-County, Ohio
Open full size
1940 US Federal Census — Mahoning-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03271-00292)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ed. J. Taylor | 41 | Head | Clerk (Prod.) | Penna. |
| 2 | Leonora Taylor | 40 | Wife | — | Penna. |
| 3 | Jeanne Taylor | 17 | Dough | — | Penna. |
| 4 | Barbara Taylor | 12 | Dough | — | Penna. |
| 5 | Henry D. Jones | 45 | Head | Store Keeper | Ohio |
| 6 | Juanita M. Jones | 42 | Wife | — | Ohio |
| 7 | Juanita R. Jones | 21 | Dough | Advt Stenog. | Ohio |
| 8 | Arnold E. Frederick | 26 | Head | Billing Clerk | Ohio |
| 9 | Evelyn M. Frederick | 23 | Wife | — | Ohio |
| 10 | Lucille F. Congin | 35 | Head | Teacher | Ohio |
| 11 | John E. Congin | 10 | Son | — | Ohio |
| 12 | Frances E. Congin | 12 | Daughter | — | Ohio |
| 13 | Frances Spencer | 64 | Mother | — | Ohio |
| 14 | Donald J. Delmark | 4 | Step-son | — | Ohio |
| 15 | Ed. J. Szymanski | 24 | Head | Weighmaster | Ohio |
| 16 | Julia A. Szymanski | 23 | Wife | — | Ohio |
| 17 | Robt Hamilton | 55 | Head | Machinist | Scotland |
| 18 | Margaret Hamilton THIS PERSON | 54 | Wife | — | Scotland |
| 19 | Mary B. Hamilton | 28 | Dough | Typist | Ohio |
| 20 | Robt B. Hamilton | 25 | Son | New Worker | Ohio |
| 21 | Lars J. Carlson | 75 | Head | — | Sweden |
| 22 | Clara Carlson | 80 | Wife | — | Sweden |
| 23 | C. Elmer | 48 | Son | Plumber Insp. | Penna. |
| 24 | M. Trude Smith | 57 | Head | Carpenter | Penna. |
| 25 | Elizabeth Smith | 53 | Wife | — | Penna. |
| 26 | Hubert T. Smith | 18 | Son | Errand Boy | Ohio |
| 27 | David B. Smith | 16 | Son | — | Ohio |
| 28 | Donald E. Countryman | 34 | Head | Clerk | Penna. |
| 29 | Isabel F. Countryman | 29 | Wife | Stenographer | Scotland |
| 30 | John Silvasy | 60 | Head | Machinist | Austria |
| 31 | Elizabeth Silvasy | 60 | Wife | — | Austria |
| 32 | Eugene J. Silvasy | 39 | Son | Draftsman | Austria |
| 33 | Rudolph J. Eckert | 59 | Head | Owner-Mgr. | Ohio |
| 34 | Margaret J. Eckert | 55 | Wife | — | Ohio |
| 35 | Raymond R. Eckert | 24 | Son | — | Ohio |
| 36 | Louis R. Eckert | 22 | Son | — | Ohio |
| 37 | Wm F. Eckert | 19 | Son | — | Ohio |
| 38 | Peggy J. Eckert | 15 | Daughter | — | Ohio |
| 39 | Melvin W. Eckert | 9 | Son | — | Ohio |
| 40 | Elsie Kreuzwieser | 40 | Head | Proprietor | Germany |
Related Census Records
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)