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Ida Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monona-County, Iowa
Our Model Tree links this Ida Martin across the 1920, 1930 and 1940 US Censuses in Monona-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1886), then head of a 5-person household.
Age 54
b. ~1886
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Monona-County, Iowa |
| Surname | Martin |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Maple Township |
| 1935 Residence (County) | Monona |
| Additional Details | |
| Occupation | House Wife |
| Income (1939) | 0 |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | House Wife |
| Township / Ward | Maple Township |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ida | Age | Birth yr |
|---|---|---|---|---|
| Alvera Martin | Daughter | — | 17 | ~1923 |
| Helen Martin | Daughter | — | 20 | ~1920 |
| Albert Martin | Head | — | 55 | ~1885 |
| Raymond Martin | Son | — | 24 | ~1916 |
| Ida Martin | Spouse | — | 54 | ~1886 |
Census Appearances
1920
Monona, Iowa
Spouse, age 34
Monona, Iowa · implied b. ~1886 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Monona, Iowa
Spouse, age 44
Monona, Iowa · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 25 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Monona-County, Iowa
Spouse, age 54
Monona-County, Iowa · implied b. ~1886 — 5 household members
| Surname | Martin |
| Given Name | Ida |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Maple Township |
| 1935 Residence (County) | Monona |
| Occupation | House Wife |
| Income (1939) | 0 |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Ida Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ida Martin
Spouse · 1940 · age 54 · b. ~1886 · 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 — Monona-County, Iowa
Open full size
1940 US Federal Census — Monona-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01184-00249)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Willie E Steckelberg | 16 | Son | — | Iowa |
| 2 | Clifford E Uhl | 36 | Head | Farm Labor | Iowa |
| 3 | Mercedes E Uhl | 34 | Wife | House Wife | Iowa |
| 4 | Robert E Uhl | 13 | Son | — | Iowa |
| 5 | Allen A Uhl | 11 | Son | — | Iowa |
| 6 | Elaine D Uhl | 10 | Daughter | — | Iowa |
| 7 | Joan E Uhl | 7 | Daughter | — | Iowa |
| 8 | Lavonne D Uhl | 5 | Daughter | — | Iowa |
| 9 | Kenneth L Uhl | 1 | Son | — | Iowa |
| 10 | John R Ruchti | 68 | Head | Farmer | Switzerland |
| 11 | Phoebe E Ruchti | 54 | Wife | House Wife | Iowa |
| 12 | Merle G Ruchti | 21 | Son | Farm Labor | Iowa |
| 13 | Carl L Ruchti | 18 | Son | Farm Labor | Iowa |
| 14 | Arline C Ruchti | 15 | Daughter | — | Iowa |
| 15 | Rudolph J Ruchti | 30 | Head | Farmer | Iowa |
| 16 | Alvera L Ruchti | 30 | Wife | House Wife | Iowa |
| 17 | Gene A Ruchti | 7 | Daughter | — | Iowa |
| 18 | Jesse L Habinck | 37 | Head | Farmer | Iowa |
| 19 | Edith V Habinck | 33 | Wife | House Wife | Iowa |
| 20 | Fern M Habinck | 14 | Daughter | — | Iowa |
| 21 | Matt Grill | 56 | Head | Farmer | Germany |
| 22 | Alvena M Grill | 53 | Wife | House Wife | Iowa |
| 23 | Arnold J Grill | 20 | Son | Farm Labor | Iowa |
| 24 | Dorothy Grill | 17 | Daughter | — | Iowa |
| 25 | Frederick M Grill | 13 | Son | — | Iowa |
| 26 | Betty Lou Grill | 11 | Daughter | — | Iowa |
| 27 | Francis S Kafton | 56 | Head | Farmer | Denmark |
| 28 | Agna Kafton | 54 | Wife | House Wife | Iowa |
| 29 | Leonard Morgan | 23 | Hired man | Farm Labor | Iowa |
| 30 | Herbert F Kafton | 26 | Head | Farmer | Minnesota |
| 31 | Wilma M Kafton | 24 | Wife | House Wife | Iowa |
| 32 | Arlene M Kafton | 0 | Daughter | — | Iowa |
| 33 | Edwin L Holbrook | 37 | Head | Carpenter Mason | Iowa |
| 34 | Pearl D Holbrook | 33 | Wife | House Wife | Iowa |
| 35 | Garry R Holbrook | 1 | Son | — | Iowa |
| 36 | Albert A Martin | 55 | Head | Farmer | Iowa |
| 37 | Ida Martin THIS PERSON | 54 | Wife | House Wife | Iowa |
| 38 | Raymond M Martin | 24 | Son | Farm Labor | Iowa |
| 39 | Helen I Martin | 20 | Daughter | School Teacher | Iowa |
| 40 | Alvera P Martin | 17 | Daughter | — | 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)