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Margaret Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clark-County, Ohio
Our Model Tree links this Margaret Martin across the 1910, 1920, 1930 and 1940 US Censuses in Clark-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1881), then head of a 4-person household.
Age 59
b. ~1881
Female
Spouse
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clark-County, Ohio |
| Surname | Martin |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Additional Details | |
| Highest Grade | C 5 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Springfield |
| Est. Birth Year | ~1881 |
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 |
|---|---|---|---|---|
| Margaret Martin | Daughter | — | 21 | ~1919 |
| Harrie Martin | Head | — | 62 | ~1878 |
| Morris Martin | Son | — | 28 | ~1912 |
| Margaret Martin | Spouse | — | 59 | ~1881 |
Census Appearances
1910
Clark, Ohio
Spouse, age 28
Clark, Ohio · implied b. ~1882 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Margaret B |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Ohio |
| Years Married | 3 |
| Children Born | 1 |
| Children Living | 1 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Clark, Ohio
Spouse, age 38
Clark, Ohio · implied b. ~1882 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Margaret B. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Clark, Ohio
Other, age 48
Clark, Ohio · implied b. ~1882 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Margaret B |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 25 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Clark-County, Ohio
Spouse, age 59
Clark-County, Ohio · implied b. ~1881 — 4 household members
| Surname | Martin |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Highest Grade | C 5 |
| 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 Martin across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Martin
Spouse · 1940 · age 59 · b. ~1881 · 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 — Clark-County, Ohio
Open full size
1940 US Federal Census — Clark-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03039-00046)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Doyle | 58 | Head | Salesman | Ohio |
| 2 | Helen S Doyle | 57 | Wife | Field Manager | Ohio |
| 3 | Annette Mchugh | 51 | Sister | Stenographer | Ohio |
| 4 | John Mchugh | 21 | Nephew | — | Ohio |
| 5 | Hazel Mchugh | 15 | Niece | — | Ohio |
| 6 | — | None | — | — | New York |
| 7 | Paul A Montanus | 57 | Head | Manufacturer | Ohio |
| 8 | Christine Montanus | 56 | Wife | — | Ohio |
| 9 | William (A) Montanus | 31 | Son | — | Ohio |
| 10 | John (A) Montanus | 19 | Son | — | Ohio |
| 11 | Ada Montanus | 17 | Daughter | — | Ohio |
| 12 | Edward Montanus | 15 | Son | — | Ohio |
| 13 | Harrie Martin | 62 | Head | Medical Doctor | Ohio |
| 14 | Margaret Martin THIS PERSON | 59 | Wife | — | Ohio |
| 15 | Morris (A.B.) Martin | 28 | Son | History Teacher | Ohio |
| 16 | Margaret (A.B.) Martin | 21 | Daughter | Field Secretary | Ohio |
| 17 | Karl Palmer | 57 | Head | — | Ohio |
| 18 | Fannie E Palmer | 57 | Wife | — | Ohio |
| 19 | Millie Nancy Palmer | 80 | Mother | — | Ohio |
| 20 | Myra James Palmer | 87 | Uncle | — | Ohio |
| 21 | Rickie P Buchman | 70 | Head | Servant | Ohio |
| 22 | Essie Willingham | 30 | Servant | Meat Cutter | Kentucky |
| 23 | Theodor Gairls | 56 | Head | Salesman | Ohio |
| 24 | Isabelle Gairls | 45 | Wife | — | Ohio |
| 25 | Henry Schwarz | 27 | Head | Chassis Assembler | Ohio |
| 26 | Lucille Schwarz | 23 | Wife | — | Ohio |
| 27 | Nelson Graham | 41 | Head | — | Ohio |
| 28 | Mildred Graham | 35 | Wife | — | Ohio |
| 29 | Nelson Jr Graham | 15 | Son | — | Ohio |
| 30 | Thornton Graham | 12 | Son | — | Ohio |
| 31 | James Graham | 11 | Son | — | Ohio |
| 32 | Jack Graham | 10 | Son | — | Ohio |
| 33 | Paul Conn | 31 | Head | Office Manager | Ohio |
| 34 | Marcia Conn | 31 | Wife | — | Ohio |
| 35 | Clara Brown | 55 | Mother | — | Ohio |
| 36 | Lewis Lyle | 27 | Head | Decorator | Ohio |
| 37 | Elis Baldwin | 45 | Head | — | Ohio |
| 38 | Elizabeth Baldwin | 35 | Wife | — | Ohio |
| 39 | Elis Jr Baldwin | 15 | Son | — | Ohio |
| 40 | James Baldwin | 13 | Son | — | 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)