MF
Mary French — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Trumbull-County, Ohio
Our Model Tree links this Mary French across the 1930 and 1940 US Censuses in Trumbull-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 6-person household.
Age 53
b. ~1887
Female
Spouse
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Trumbull-County, Ohio |
| Surname | French |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Warren City |
| 1935 Residence (County) | Trumbull |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Warren City |
| Est. Birth Year | ~1887 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret French | Daughter | — | 9 | ~1931 |
| Arlene French | Daughter | — | 21 | ~1919 |
| Patricia French | Daughter | — | 29 | ~1911 |
| John French | Head | — | 52 | ~1888 |
| John French | Son | — | 20 | ~1920 |
| Mary French | Spouse | — | 53 | ~1887 |
Census Appearances
1930
Trumbull, Ohio
Spouse, age 43
Trumbull, Ohio · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | French |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 28 |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Trumbull-County, Ohio
Spouse, age 53
Trumbull-County, Ohio · implied b. ~1887 — 6 household members
| Surname | French |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Warren City |
| 1935 Residence (County) | Trumbull |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Mary French across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary French
Spouse · 1940 · age 53 · b. ~1887 · 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 — Trumbull-County, Ohio
Open full size
1940 US Federal Census — Trumbull-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03156-00259)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ida A Kane | 57 | Wife | — | Ohio |
| 42 | Margaret Kane | 35 | Daughter | Clerk | Ohio |
| 43 | Mary A O'Brien | 75 | Mother | — | Pennsylvania |
| 44 | John T O'Brien | 78 | Father | — | Italy |
| 45 | Marshall B Jamison | 33 | Head | Salesman | Pennsylvania |
| 46 | Sarah M Jamison | 32 | Wife | — | Pennsylvania |
| 47 | Marshall Jamison | 5 | Son | — | Ohio |
| 48 | Lawrence B Moser | 43 | Head | Grinder | Ohio |
| 49 | Esther Moser | 43 | Wife | Machine Worker | Ohio |
| 50 | Kenneth S Mcelrath | 44 | Head | Salesman | Pennsylvania |
| 51 | Marybelle Mcelrath | 49 | Wife | — | Washington |
| 52 | Albert Jane Mcelrath | 22 | Son | Stenographer | Ohio |
| 53 | Ida Maffitt | 55 | Head | Clerk | Ohio |
| 54 | John French | 52 | Head | Inspector | Illinois |
| 55 | Mary A French THIS PERSON | 53 | Wife | — | Michigan |
| 56 | Patricia French | 29 | Daughter | Teacher | Michigan |
| 57 | Arlene French | 21 | Daughter | Inspector | Michigan |
| 58 | John French | 20 | Son | — | Michigan |
| 59 | Margaret French | 9 | Daughter | — | Ohio |
| 60 | Mabel C Jackson | 64 | Head | — | Ohio |
| 61 | Mattie Hubbard | 55 | Lodger | Sewing | Michigan |
| 62 | Jay P Van Fossan | 48 | Head | Supt. | Ohio |
| 63 | Jane C Van Fossan | 45 | Wife | — | Pennsylvania |
| 64 | Richard Van Fossan | 17 | Son | — | Ohio |
| 65 | William H Van Fossan | 10 | Son | — | Ohio |
| 66 | Charles W Grabers | 43 | Head | Melter | Ohio |
| 67 | Alena L Grabers | 41 | Wife | — | Ohio |
| 68 | Theodore C Grabers | 18 | Son | — | Ohio |
| 69 | Nellie Christman | 76 | Mother | — | Ohio |
| 70 | Lloyd Spencer | 38 | Head | Own Business | Ohio |
| 71 | Helen B Spencer | 37 | Wife | — | Ohio |
| 72 | Charles Spencer | 15 | Son | — | Ohio |
| 73 | Don Spencer | 12 | Son | — | Pennsylvania |
| 74 | Frank Cavanaugh | 48 | Head | Own Business | Ohio |
| 75 | Ruth M Cavanaugh | 48 | Wife | — | Ohio |
| 76 | Martha Cavanaugh | 21 | Daughter | — | Ohio |
| 77 | Rebecca Cavanaugh | 20 | Daughter | — | Ohio |
| 78 | Carrie Mcintyre | 73 | Mother | — | Ohio |
| 79 | Charles L Free | 48 | Head | Saving Manager | Ohio |
| 80 | Mildred A Free | 37 | Wife | — | Ohio |
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)