CM
Clarence Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Clarence Martin across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 5-person household.
Age 53
b. ~1887
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Martin |
| Given Name | Clarence R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Lawyer |
| Industry | Own Office |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Lawyer |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1887 |
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 Clarence | Age | Birth yr |
|---|---|---|---|---|
| Nellie Martin | Spouse | — | 46 | ~1894 |
| Clarence Martin | Head | — | 53 | ~1887 |
| Claribel Martin | Daughter | — | 14 | ~1926 |
| Virginia Martin | Daughter | — | 15 | ~1925 |
| Edward Martin | Son | — | 12 | ~1928 |
Census Appearances
1920
Marion, Indiana
Head, age 33
Marion, Indiana · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Clarence |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Indiana |
| Occupation | Helper |
| Industry | R. R. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Marion, Indiana
Head, age 43
Marion, Indiana · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Clarence R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 28 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Judge |
| Industry | Supreme Court |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 12,500 |
| Radio Set | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Marion-County, Indiana
Head, age 53
Marion-County, Indiana · implied b. ~1887 — 5 household members
| Surname | Martin |
| Given Name | Clarence R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Lawyer |
| Industry | Own Office |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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.
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This person
Anchor record
Clarence Martin
Head · 1940 · age 53 · b. ~1887 · Indiana
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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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01124-00839)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen D. Hegarty | 30 | Daughter | Bookkeeper | Indiana |
| 42 | Vincent Hegarty | 25 | Son | Biller | Indiana |
| 43 | Bernard Hegarty | 23 | Son | Stenographer | Indiana |
| 44 | Joseph Hegarty | 20 | Son | Biller | Indiana |
| 45 | George J. Mayer | 78 | Head | President | Indiana |
| 46 | Myrtle B. Mayer | 52 | Daughter | — | Indiana |
| 47 | Belle Dearborn | 83 | Head | — | Wisconsin |
| 48 | Lola B. Jones | 50 | Lodger | Clerk | Indiana |
| 49 | John C. Rickert | 62 | Head | Salesman | Indiana |
| 50 | Frances Rickert | 59 | Wife | — | Indiana |
| 51 | Bernice Kline | 61 | Head | — | Indiana |
| 52 | Frederick Kline | 28 | Son | Agent | Indiana |
| 53 | Richard Kline | 27 | Son | 0 | Indiana |
| 54 | Genevieve Brown | 64 | Head | Insurance Agent | Indiana |
| 55 | Janet Keller | 44 | Partner | Art Teacher | Indiana |
| 56 | Mary Jane Saulter | 68 | Head | — | Illinois |
| 57 | Margaret E. Wollenbar | 66 | Partner | — | Illinois |
| 58 | Rufus O'Harrow | 71 | Head | Fire Ins. Man. | Indiana |
| 59 | Minnie O'Harrow | 69 | Wife | — | Indiana |
| 60 | Bernard Ungerer | 31 | Lodger | Elevator Operator | Indiana |
| 61 | Harry Appel | 31 | Head | Salesman | Ohio |
| 62 | Blanche Appel | 30 | Wife | Stenographer | Indiana |
| 63 | Hester Clark | 57 | Head | Reporter | Michigan |
| 64 | Edna Clark | 52 | Wife | — | Indiana |
| 65 | Helen V. Coy | 34 | Head | Registered Nurse | Indiana |
| 66 | Alice M. Coy | 59 | Mother | — | Indiana |
| 67 | Robert A. Coy | 25 | Brother | Chauffeur | Indiana |
| 68 | Mary Alice West | 80 | Head | — | Ohio |
| 69 | George D. Davis | 27 | Head | Physician | Indiana |
| 70 | Ruth C. Davis | 29 | Wife | Private Duty Nurse | Indiana |
| 71 | Anna Griffin | 72 | Head | — | Indiana |
| 72 | Edith King | 40 | Maid | Maid | Kentucky |
| 73 | Clarence R. Martin THIS PERSON | 53 | Head | Lawyer | Ohio |
| 74 | Nellie Martin | 46 | Wife | — | Indiana |
| 75 | Virginia Lee Martin | 15 | Daughter | — | Indiana |
| 76 | Claribel Martin | 14 | Daughter | — | Indiana |
| 77 | Edward Martin | 12 | Son | — | Indiana |
| 78 | Lewis Hall | 21 | Head | 2Nd Lieutenant | Kansas |
| 79 | Catherine Hall | 29 | Wife | — | Ohio |
| 80 | Lewis Jr. Hall | 1 | Son | — | Ohio |
Related Census Records
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)