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Florence Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Calhoun-County, Iowa
Our Model Tree links this Florence Martin across the 1920, 1930 and 1940 US Censuses in Calhoun-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 5-person household.
Age 51
b. ~1889
Female
Spouse
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Calhoun-County, Iowa |
| Surname | Martin |
| Given Name | Florence |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Jolly |
| 1935 Residence (County) | Calhoun |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Jolly |
| Est. Birth Year | ~1889 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Florence | Age | Birth yr |
|---|---|---|---|---|
| Edna Martin | Daughter | — | 21 | ~1919 |
| Audrey Martin | Daughter | — | 19 | ~1921 |
| John Martin | Head | — | 63 | ~1877 |
| John Martin | Son | — | 29 | ~1911 |
| Florence Martin | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Calhoun, Iowa
Spouse, age 31
Calhoun, Iowa · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Florence |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Calhoun, Iowa
Spouse, age 41
Calhoun, Iowa · implied b. ~1889 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Florence |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 21 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Calhoun-County, Iowa
Spouse, age 51
Calhoun-County, Iowa · implied b. ~1889 — 5 household members
| Surname | Martin |
| Given Name | Florence |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Jolly |
| 1935 Residence (County) | Calhoun |
| Class of Worker | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Florence Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Florence Martin
Spouse · 1940 · age 51 · b. ~1889 · Iowa
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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 — Calhoun-County, Iowa
Open full size
1940 US Federal Census — Calhoun-County, Iowa
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-01144-00008)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Otis W Verminder | 21 | Head | Clerk | Iowa |
| 2 | Dorothy Verminder | 20 | Wife | — | Iowa |
| 3 | Rose Mary Verminder | 2 | Daughter | — | Iowa |
| 5 | Claus W Ellis | 34 | Head | Proprietor | Iowa |
| 6 | John H Martin | 63 | Head | Farm Laborer | North Carolina |
| 7 | Florence Martin THIS PERSON | 51 | Wife | — | Pennsylvania |
| 8 | John W Martin | 29 | Son | Laborer | Iowa |
| 9 | Edna Martin | 21 | Daughter | Maid | Iowa |
| 10 | Audrey Martin | 19 | Daughter | Laborer | Iowa |
| 12 | Lloyd T Ellis | 28 | Head | Clerk | Iowa |
| 13 | Gladys Ellis | 25 | Wife | — | Iowa |
| 14 | Juanita Ellis | 6 | Daughter | — | Iowa |
| 15 | Edmond H Hunter | 38 | Head | Truck Salesman | Iowa |
| 16 | Esther Hunter | 37 | Wife | — | Iowa |
| 17 | Dean Hunter | 16 | Son | — | Iowa |
| 18 | Lucile Hunter | 15 | Daughter | — | Iowa |
| 19 | Bonnie Hunter | 5 | Daughter | — | Iowa |
| 21 | Edward W Pickering | 25 | Head | Manager | Iowa |
| 22 | Dorothy Pickering | 21 | Wife | — | Iowa |
| 23 | Harry R Peters | 28 | Head | Farm Laborer | Missouri |
| 24 | Ethel Peters | 33 | Wife | Postmaster | North Dakota |
| 25 | Betty Joyce Peters | 10 | Daughter | — | Iowa |
| 26 | Rand W Yerkes | 39 | Head | Section Hand | Iowa |
| 27 | Richard C Yerkes | 9 | Son | — | Iowa |
| 28 | Adolph Boss | 41 | Lodger | Farm Laborer | Iowa |
| 29 | Berritt L Weaver | 57 | Head | Clergyman | Iowa |
| 30 | William P Heeler | 67 | Lodger | Pharmacist | Illinois |
| 31 | Quilond R Hopkins | 32 | Head | Proprietor | Iowa |
| 32 | Evelyn Hopkins | 30 | Wife | — | Iowa |
| 34 | Clarence L Clipperton | 41 | Head | Carpenter | Iowa |
| 35 | Ruth V Clipperton | 36 | Wife | — | Iowa |
| 36 | Alice Frances Clipperton | 14 | Son | — | Iowa |
| 37 | George H Kore | 39 | Head | Public School Superintendent | Nebraska |
| 38 | Lois M Kore | 27 | Wife | — | Nebraska |
| 40 | Hattie Donaker | 81 | Head | — | Iowa |
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)