MH
Margaret Hamilton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ashtabula-County, Ohio
Our Model Tree links this Margaret Hamilton across the 1920, 1930 and 1940 US Censuses in Ashtabula-County, Ohio (XGBoost, ~Confirmed), with identified parents George & Mason — first a spouse (b.~1906), then head of a 3-person household.
Age 34
b. ~1906
Female
Spouse
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ashtabula-County, Ohio |
| Surname | Hamilton |
| Given Name | Margaret S |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Richmond Twp. |
| 1935 Residence (County) | Ashtabula |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Richmond Twp |
| Est. Birth Year | ~1906 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Hamilton | Spouse | — | 34 | ~1906 |
| Ann Hamilton | Daughter | — | 5 | ~1935 |
| Everett Hamilton | Head | — | 29 | ~1911 |
Census Appearances
1920
Ashtabula, Ohio
Daughter, age 14
Ashtabula, Ohio · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Ashtabula, Ohio
Daughter, age 24
Ashtabula, Ohio · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Ashtabula-County, Ohio
Spouse, age 34
Ashtabula-County, Ohio · implied b. ~1906 — 3 household members
| Surname | Hamilton |
| Given Name | Margaret S |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Richmond Twp. |
| 1935 Residence (County) | Ashtabula |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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. Identified parents: father George Hamilton (~0.92 confidence) and father Mason Hamilton (~0.92 confidence) and mother Alma Hamilton (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Hamilton
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Mason Hamilton
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Alma Hamilton
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Hamilton
Spouse · 1940 · age 34 · b. ~1906 · Ohio
★ 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 — Ashtabula-County, Ohio
Open full size
1940 US Federal Census — Ashtabula-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03024-00804)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Everett Hamilton | 29 | Head | Farmer | Ohio |
| 2 | Margaret S Hamilton THIS PERSON | 34 | Wife | — | Ohio |
| 3 | Ann M Hamilton | 5 | Daughter | — | Ohio |
| 4 | David Honkonen | 65 | Head | Farmer | Finland |
| 5 | Wilhelmina Honkonen | 59 | Wife | — | Finland |
| 6 | Yalma E Honkonen | 34 | Daughter | — | Ohio |
| 7 | William W Flack | 38 | Head | Farmer | Ohio |
| 8 | Bell R Flack | 39 | Wife | — | West Virginia |
| 9 | Paul E Flack | 19 | Son | Farm Laborer | Ohio |
| 10 | Jean M Flack | 13 | Daughter | — | Ohio |
| 11 | Betty F Flack | 3 | Daughter | — | Ohio |
| 12 | Joseph Hewel | 67 | Head | Farmer | Germany |
| 13 | Allen M Hewel | 62 | Wife | — | Indiana |
| 14 | Howard M Hall | 44 | Head | Farmer | Ohio |
| 15 | Ruth C Hall | 44 | Wife | — | Ohio |
| 16 | Howard Jr Hall | 15 | Son | Farm Laborer | Ohio |
| 17 | Dorothy G Hall | 13 | Daughter | — | Ohio |
| 18 | Robert L Hall | 11 | Son | — | Ohio |
| 19 | Onie M Hitchcock | 64 | Head | — | Ohio |
| 20 | Edwin C Stone | 75 | Head | — | Ohio |
| 21 | Lydia Mccall | 74 | Lodger | — | Ohio |
| 22 | Rufus Thompson | 45 | Head | Foreman Electrician | Ohio |
| 23 | Ida H Thompson | 43 | Wife | — | Ohio |
| 24 | Edward F Thompson | 23 | Son | Farm Laborer | Ohio |
| 25 | Robert J Thompson | 20 | Son | Farm Laborer | Ohio |
| 26 | Helen M Thompson | 18 | Daughter | House Keeper | Ohio |
| 27 | Violet L Thompson | 16 | Daughter | — | Ohio |
| 28 | Junette E Thompson | 13 | Daughter | — | Ohio |
| 29 | Lila A Thompson | 12 | Daughter | — | Ohio |
| 30 | Fred H Myers | 56 | Head | Farmer | Pennsylvania |
| 31 | Marietta L Myers | 49 | Wife | — | Pennsylvania |
| 32 | Roberta J Myers | 20 | Daughter | School Teacher | Pennsylvania |
| 33 | Julius Waganik | 42 | Head | Buffer | Hungary |
| 34 | Katherine Waganik | 35 | Wife | — | Illinois |
| 35 | Julia Waganik | 13 | Son | — | Ohio |
| 36 | Antal Szabo | 53 | Head | Farmer | Hungary |
| 37 | Elizabeth Szabo | 40 | Wife | — | Hungary |
| 38 | Howard Szabo | 13 | Son | — | Michigan |
| 39 | Mike Szabo | 8 | Son | — | Michigan |
| 40 | Antal Szabo | 7 | Son | — | Michigan |
Pedigree Summary
Margaret
Gen 1 · 3 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)