CM
Clarence Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this Clarence Martin across the 1920, 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed), with identified parents Mary & Nancy — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Martin |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Council Bluffs |
| 1935 Residence (County) | Pottawattamie |
| Additional Details | |
| Occupation | Laborer |
| Industry | Wholesale Feed Co |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 700 |
| Highest Grade | G 8 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Council Bluffs |
| Est. Birth Year | ~1913 |
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 Clarence | Age | Birth yr |
|---|---|---|---|---|
| Clarence Martin | Son | — | 27 | ~1913 |
| Russell Martin | Son | — | 23 | ~1917 |
| Emery Martin | Head | — | 54 | ~1886 |
| Mary Martin | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Pottawattamie, Iowa
Son, age 7
Pottawattamie, Iowa · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Pottawattamie, Iowa
Son, age 17
Pottawattamie, Iowa · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Clarence R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Kentucky |
| Occupation | Laborer |
| Industry | Power Plant |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Pottawattamie-County, Iowa
Son, age 27
Pottawattamie-County, Iowa · implied b. ~1913 — 4 household members
| Surname | Martin |
| Given Name | Clarence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Council Bluffs |
| 1935 Residence (County) | Pottawattamie |
| Occupation | Laborer |
| Industry | Wholesale Feed Co |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 700 |
| Highest Grade | G 8 |
| 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 Clarence Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Martin (~0.92 confidence) and mother Nancy Martin (~0.92 confidence) and father Emery Martin (~0.92 confidence) and father Emery Martin (~0.92 confidence) and father Emery Martin (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Martin
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Nancy Martin
b. ~1881
Source mother
● Household
· direct · ~0.92
Father
Emery Martin
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Emery Martin
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Emery Martin
b. ~1886
Source father
● Household
· direct · ~0.92
This person
Anchor record
Clarence Martin
Son · 1940 · age 27 · b. ~1913 · Iowa
★ You are viewing this record
Sibling
Russell Martin
Sibling · 1940 · age 23
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 — Pottawattamie-County, Iowa
Open full size
1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01199-00207)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | E. G. Funk | 44 | Head | City Worker | Kentucky |
| 42 | Harry Edenburn | 40 | Head | Stock Foreman | Oklahoma |
| 43 | Ella Mae Edenburn | 35 | Wife | — | Iowa |
| 44 | Rollin Edenburn | 11 | Son | — | Iowa |
| 45 | Jack Edenburn | 10 | Son | — | Iowa |
| 47 | John Carman | 34 | Head | Helper & Driver | Iowa |
| 48 | Clara Carman | 33 | Wife | — | Kansas |
| 49 | Virginia Carman | 16 | Daughter | — | Iowa |
| 50 | Betty Carman | 14 | Daughter | — | Iowa |
| 51 | Waunita Carman | 12 | Daughter | — | Iowa |
| 52 | John Carman | 10 | Son | — | Iowa |
| 53 | Dale Carman | 8 | Son | — | Iowa |
| 54 | Carol Carman | 6 | Daughter | — | Iowa |
| 55 | Charles Carman | 4 | Son | — | Iowa |
| 56 | Margaret Carman | 2 | Daughter | — | Iowa |
| 57 | Merl Edenburn | 25 | Head | Laborer | Iowa |
| 58 | Ina Edenburn | 20 | Wife | — | Wyoming |
| 59 | Betty Edenburn | 3 | Daughter | — | Iowa |
| 61 | Emery Martin | 54 | Head | Laborer | Iowa |
| 62 | Mary Martin | 59 | Wife | — | Kentucky |
| 63 | Clarence Martin THIS PERSON | 27 | Son | Laborer | Iowa |
| 64 | Russell Martin | 23 | Son | Clerk | Iowa |
| 65 | Arson Townsend | 63 | Head | Laborer | Iowa |
| 66 | Mary Townsend | 42 | Wife | — | Iowa |
| 67 | Wellace Townsend | 13 | Son | — | Iowa |
| 68 | Ralph Johnson | 32 | Head | Electrician Shop | Iowa |
| 69 | Vivian Johnson | 20 | Wife | — | Nebraska |
| 70 | Larry Johnson | 1 | Son | — | Iowa |
| 71 | John Morlan | 74 | Head | Street Cleaner | Iowa |
| 72 | Etta Morlan | 71 | Wife | — | Iowa |
| 73 | Will Doty | 71 | Head | Cook | Iowa |
| 74 | Cora Doty | 66 | Wife | — | Iowa |
| 75 | Bessie Doty | 36 | Daughter | — | Iowa |
| 76 | William Doty | 25 | Daughter|Son | Cook | Iowa |
| 77 | Lois Doty | 23 | Daughter | — | Iowa |
| 78 | Pearl Allison | 53 | Head | Housework New Worker | Missouri |
| 79 | Gene Allison | 14 | Son | — | Nebraska |
| 80 | Theodore Doty | 32 | Head | Laborer | Iowa |
Related Census Records
Pedigree Summary
Clarence + 1 sibling
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)