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Marion Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Buchanan-County, Iowa
Our Model Tree links this Marion Martin across the 1920, 1930 and 1940 US Censuses in Buchanan-County, Iowa (XGBoost, ~Confirmed), with identified parents Bert & Burt — first a son (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Buchanan-County, Iowa |
| Surname | Martin |
| Given Name | Marion W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Independence |
| 1935 Residence (County) | Buchanan |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 624 |
| Highest Grade | No H4 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Clerk |
| Township / Ward | Independence |
| Est. Birth Year | ~1918 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marion | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Martin | Daughter | — | 20 | ~1920 |
| Donald Martin | Son | — | 15 | ~1925 |
| Kenith Martin | Son | — | 17 | ~1923 |
| Marion Martin | Son | — | 22 | ~1918 |
| Bernice Martin | Daughter | — | 12 | ~1928 |
| Ada Martin | Spouse | — | 52 | ~1888 |
| Bert Martin | Head | — | 51 | ~1889 |
Census Appearances
1920
Buchanan, Iowa
Son, age 2
Buchanan, Iowa · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Marion |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Buchanan, Iowa
Son, age 11
Buchanan, Iowa · implied b. ~1919 — 29 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Marion |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Buchanan-County, Iowa
Son, age 22
Buchanan-County, Iowa · implied b. ~1918 — 7 household members
| Surname | Martin |
| Given Name | Marion W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Independence |
| 1935 Residence (County) | Buchanan |
| Occupation | Clerk |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 624 |
| Highest Grade | No H4 |
| 1935 Residence | Iowa |
| 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 Marion Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Bert Martin (~0.92 confidence) and father Burt Martin (~0.92 confidence) and father George Lickley (~0.92 confidence) and mother Ada Martin (~0.92 confidence) and mother Ada Martin (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Bert Martin
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Burt Martin
b. ~1882
Source father
● Household
· direct · ~0.92
Father
George Lickley
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Ada Martin
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Ada Martin
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Marion Martin
Son · 1940 · age 22 · b. ~1918 · Iowa
★ You are viewing this record
Sibling
Kenith Martin
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Martin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Martin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Martin
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Buchanan-County, Iowa
Open full size
1940 US Federal Census — Buchanan-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01142-01045)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert F. Hanson | 8 | Son | — | Iowa |
| 2 | Robert Simmerly | 68 | Head | Laborer | Illinois |
| 3 | Alice M. Simmerly | 55 | Wife | Maid | Illinois |
| 4 | Bernadene I. Simmerly | 24 | Daughter | Clerk | Iowa |
| 5 | Robert A. Simmerly | 16 | Son | Laborer | Iowa |
| 6 | Albert A. Ehrke | 51 | Head | Hydro Plant Operator | Iowa |
| 7 | Mahala M. Ehrke | 55 | Wife | — | Iowa |
| 8 | Sweet Hilda A. Ehrke | 20 | Daughter | — | Iowa |
| 9 | Sweet Roger Ehrke | 17 | Son | — | Iowa |
| 10 | Daniel J. Axline | 62 | Head | — | Iowa |
| 11 | Rosalee I. Axline | 65 | Wife | — | Iowa |
| 12 | Robert Copeland | 23 | Head | Truck Driver | Iowa |
| 13 | Ruth Copeland | 21 | Wife | — | Iowa |
| 14 | Dale Copeland | 5 | Son | — | Iowa |
| 15 | Marlene Copeland | 4 | Daughter | — | Iowa |
| 16 | Richard Copeland | 2 | Son | — | Iowa |
| 17 | James B. Copeland | 0 | Son | — | Iowa |
| 18 | Norman N. Thompson | 27 | Head | Laborer | Iowa |
| 19 | Margery L. Thompson | 21 | Wife | — | Iowa |
| 20 | Rhonda Lee Thompson | 2 | Daughter | — | Iowa |
| 21 | Bert E. Martin | 51 | Head | Laborer | Iowa |
| 22 | Ada J. Martin | 52 | Wife | Laborer | Iowa |
| 23 | Marion W. Martin THIS PERSON | 22 | Son | Clerk | Iowa |
| 24 | Dorothy A. Martin | 20 | Daughter | Egg Breaker | Iowa |
| 25 | Kenith W. Martin | 17 | Son | — | Iowa |
| 26 | Donald R. Martin | 15 | Son | — | Iowa |
| 27 | Bernice J. Martin | 12 | Daughter | — | Iowa |
| 28 | Walter Marte | 58 | Head | None Butcher | Iowa |
| 29 | Allen T. Olmstead | 75 | Lodger | — | Pennsylvania |
| 30 | John L. Lawless | 35 | Head | Laborer | Nevada |
| 31 | Elma M. Lawless | 23 | Wife | — | Iowa |
| 32 | William L. Lawless | 3 | Son | — | Iowa |
| 33 | Marilyn M. Lawless | 1 | Daughter | — | Iowa |
| 34 | Effie M. Lawless | 59 | Head | — | Iowa |
| 35 | Mae Lawless | 30 | Daughter | — | Iowa |
| 36 | Beatrice A. Lawless | 15 | Daughter | — | Iowa |
| 37 | Marjorie L. Dean | 8 | Granddaughter | — | Iowa |
| 38 | Luetta Church | 69 | Head | — | Iowa |
| 39 | Glen Hertzberg | 39 | Head | Salesman | Iowa |
| 40 | Margaret B. Hertzberg | 39 | Wife | Cashier | Minnesota |
Related Census Records
Pedigree Summary
Marion + 4 siblings
Gen 1 · 5 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)