RM
Robert Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Osage-County, Oklahoma
Our Model Tree links this Robert Martin across the 1920, 1930 and 1940 US Censuses in Osage-County, Oklahoma (XGBoost, ~Confirmed), with identified parents W & Emma — first a son (b.~1910), then head of a 6-person household.
Age 30
b. ~1910
Male
Son
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Osage-County, Oklahoma |
| Surname | Martin |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Big Hill Twp |
| 1935 Residence (County) | Osage |
| Additional Details | |
| Occupation | Laborer |
| Industry | Ice plant |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 1082 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Laborer |
| Township / Ward | Big Hill Twp |
| Est. Birth Year | ~1910 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Ruth Martin | Daughter | — | 16 | ~1924 |
| W Martin | Head | — | 69 | ~1871 |
| Charley Martin | Son | — | 20 | ~1920 |
| James Martin | Son | — | 22 | ~1918 |
| Robert Martin | Son | — | 30 | ~1910 |
| Erma Martin | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Osage, Oklahoma
Son, age 10
Osage, Oklahoma · implied b. ~1910 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Robert O. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Texas |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Osage, Oklahoma
Son, age 20
Osage, Oklahoma · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Texas |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Osage-County, Oklahoma
Son, age 30
Osage-County, Oklahoma · implied b. ~1910 — 6 household members
| Surname | Martin |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Big Hill Twp |
| 1935 Residence (County) | Osage |
| Occupation | Laborer |
| Industry | Ice plant |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 1082 |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 Robert Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father W Martin (~0.92 confidence) and mother Emma Martin (~0.92 confidence) and mother Erma Martin (~0.92 confidence) and mother Irma Martin (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
W Martin
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Emma Martin
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Erma Martin
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Irma Martin
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Martin
Son · 1940 · age 30 · b. ~1910 · Oklahoma
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Sibling
James Martin
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charley Martin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Martin
Sibling · 1940 · age 16
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 — Osage-County, Oklahoma
Open full size
1940 US Federal Census — Osage-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03320-00165)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dale Smith | 42 | Head | Farmer | Iowa |
| 2 | Pearl Smith | 44 | Wife | — | Missouri |
| 3 | Hazel Ann Smith | 16 | Daughter | — | Oklahoma |
| 4 | Benjamin Wagman | 43 | Head | Farmer | Missouri |
| 5 | Doris M Wagman | 30 | Wife | — | Kansas |
| 6 | King Smith | 60 | Lodger | Farmer | Texas |
| 7 | W. A. Martin | 69 | Head | Farmer | Texas |
| 8 | Erma Martin | 53 | Wife | — | Kansas |
| 9 | Robert Martin THIS PERSON | 30 | Son | Laborer | Oklahoma |
| 10 | James Martin | 22 | Son | — | Oklahoma |
| 11 | Charley Martin | 20 | Son | — | Oklahoma |
| 12 | Ruth Martin | 16 | Daughter | — | Oklahoma |
| 13 | Ration Myers | 65 | Head | Farmer | Kentucky |
| 14 | Pearl Myers | 53 | Wife | — | Kansas |
| 15 | Dewey Myers | 19 | Son | Laborer | Oklahoma |
| 16 | Julia Myers | 21 | Daughter | Housekeeper | Oklahoma |
| 17 | Opal Scott | 17 | Daughter | — | Oklahoma |
| 18 | Warren Scott | 16 | Son | — | Oklahoma |
| 19 | Bobbie Scott | 14 | Son | — | Oklahoma |
| 20 | Ray Scott | 11 | Son | — | Oklahoma |
| 21 | Frances Scott | 10 | Daughter | — | Oklahoma |
| 22 | Mary Ann Scott | 9 | Daughter | — | Oklahoma |
| 23 | Neon Scott | 19 | Son-in-law | Contractor | Texas |
| 24 | Jesse Webber | 31 | Head | Laborer | Oklahoma |
| 25 | Gellie Webber | 24 | Wife | — | Oklahoma |
| 26 | Gerald Fred Webber | 5 | Son | — | Oklahoma |
| 27 | Haskell C Webber | 1 | Son | — | Oklahoma |
| 28 | Walter Carrell | 60 | Head | Farmer | Missouri |
| 29 | Edna Mae Carrell | 58 | Wife | — | Illinois |
| 30 | Herbert Klinger | 28 | Head | Farmer | Oklahoma |
| 31 | Kathrin Klinger | 24 | Wife | — | Oklahoma |
| 32 | Peggy Lou Klinger | 2 | Daughter | — | Oklahoma |
| 33 | Bill Fryer | 66 | Head | Farmer | Oklahoma |
| 34 | Celia Cox Fryer | 52 | Wife | — | Oklahoma |
| 35 | John Beardmore | 61 | Lodger | Laborer | Oklahoma |
| 36 | Clara Collins | 54 | Lodger | Housekeeper | Oklahoma |
| 37 | Robert Dunagan | 5 | Lodger | — | Kansas |
| 38 | Neye Henkens | 47 | Head | Farmer | Illinois |
| 39 | Clara Henkens | 37 | Wife | — | Oklahoma |
| 40 | Archie Henkens | 19 | Son | Laborer | Oklahoma |
Pedigree Summary
Robert + 3 siblings
Gen 1 · 4 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)