RM
Ralph Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Montgomery-County, Illinois
Our Model Tree links this Ralph Martin across the 1910, 1920, 1930 and 1940 US Censuses in Montgomery-County, Illinois (XGBoost, ~Confirmed), with identified parents Flora & Frank — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Illinois |
| Surname | Martin |
| Given Name | Ralph W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Pitman Twp |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Pitman Twp |
| Est. Birth Year | ~1909 |
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 Ralph | Age | Birth yr |
|---|---|---|---|---|
| Wilton Martin | Son | — | 2 | ~1938 |
| Ralph Martin | Son | — | 4 | ~1936 |
| Ralph Martin | Head | — | 31 | ~1909 |
| Velma Martin | Spouse | — | 25 | ~1915 |
Census Appearances
1910
Montgomery, Illinois
Son, age
Montgomery, Illinois · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Ralph W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Montgomery, Illinois
Son, age 10
Montgomery, Illinois · implied b. ~1910 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marten |
| Given Name | Ralph W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Montgomery, Illinois
Son, age 21
Montgomery, Illinois · implied b. ~1909 — 49 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marten |
| Given Name | Ralph W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Montgomery-County, Illinois
Head, age 31
Montgomery-County, Illinois · implied b. ~1909 — 4 household members
| Surname | Martin |
| Given Name | Ralph W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Pitman Twp |
| 1935 Residence (County) | Montgomery |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Ralph Martin across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Flora Martin (~0.92 confidence) and father Frank Martin (~0.92 confidence) and mother Marten Marten (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Flora Martin
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
Frank Martin
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Marten Marten
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph Martin
Head · 1940 · age 31 · b. ~1909 · Illinois
★ 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 — Montgomery-County, Illinois
Open full size
1940 US Federal Census — Montgomery-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00860-00836)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ora O. Specht | 47 | Head | Farmer | Illinois |
| 2 | Fay F. Specht | 47 | Wife | Housekeeper | Illinois |
| 3 | Charles E. Fricke | 75 | Father-in-law | — | Illinois |
| 4 | Louis H. Klaus | 36 | Head | Farmer | Illinois |
| 5 | Gladys M. Klaus | 27 | Wife | — | Illinois |
| 6 | Wanda H. Klaus | 5 | Daughter | — | Illinois |
| 7 | Shirley M. Klaus | 4 | Daughter | — | Illinois |
| 8 | James R. Klaus | 2 | Son | — | Illinois |
| 9 | William W. Kirk | 78 | Head | — | Illinois |
| 10 | Hester E. Kirk | 77 | Wife | — | Virginia |
| 11 | William L. Kirk | 39 | Son | Farmer | Illinois |
| 12 | Hester Ann Kirk | 35 | Daughter | — | Illinois |
| 13 | John Kirk | 70 | Head | Farmer | Illinois |
| 14 | Mary Kirk | 68 | Wife | — | Illinois |
| 15 | Frank Kirk | 24 | Son | Farmer | Illinois |
| 16 | Levi C. Bethard | 49 | Head | Farmer | Illinois |
| 17 | Mabel G. Bethard | 47 | Wife | — | Illinois |
| 18 | Chris C. Bethard | 24 | Son | — | Illinois |
| 19 | Thral M. Bethard | 23 | Son | Mechanic | Illinois |
| 20 | Ralph W. Martin THIS PERSON | 31 | Head | Farmer | Illinois |
| 21 | Velma M. Martin | 25 | Wife | — | Illinois |
| 22 | Ralph R. Martin | 4 | Son | — | Illinois |
| 23 | Wilton L. Martin | 2 | Son | — | Illinois |
| 24 | Henry Martin | 66 | Head | — | Illinois |
| 25 | Alma Martin | 44 | Wife | — | Germany |
| 26 | Alvida Martin | 12 | Daughter | — | Illinois |
| 27 | Henry W. Martin | 10 | Son | — | Illinois |
| 28 | Lena Martin | 64 | Head | Farmer | Illinois |
| 29 | Harry C. Lindly | 36 | Head | Farm Hand | Illinois |
| 30 | Yanny B. Lindly | 36 | Wife | — | Illinois |
| 31 | Dolores M. Lindly | 7 | Daughter | — | Illinois |
| 32 | Virgil L. Lindly | 5 | Son | — | Illinois |
| 33 | Eulan E. Brawner | 30 | Head | Farm Hand | Illinois |
| 34 | Frida P. Brawner | 24 | Wife | — | Illinois |
| 35 | Duallon S. Brawner | 4 | Son | — | Illinois |
| 36 | Thomas M. Brawner | 3 | Son | — | Illinois |
| 37 | Eleanor Brawner | 2 | Daughter | — | Illinois |
| 38 | James V. Mcanully | 29 | Head | Farm Manager | Illinois |
| 39 | Janice W. Mcanully | 24 | Wife | — | Illinois |
| 40 | Joseph L. Mcnamara | 33 | Head | — | Illinois |
Pedigree Summary
Ralph
Gen 1 · 3 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)