RC
Ralph Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Ralph Clark across the 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 8-person household.
Age 10
b. ~1930
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Clark |
| Given Name | Ralph J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same House |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1930 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Burton Clark | Head | — | 35 | ~1905 |
| Ethel Clark | Spouse | — | 36 | ~1904 |
| Gene Clark | Son | — | 5 | ~1935 |
| Betty Clark | Daughter | — | 13 | ~1927 |
| Edward Clark | Son | — | 16 | ~1924 |
| Carl Clark | Son | — | 9 | ~1931 |
| Eugene Clark | Son | — | 18 | ~1922 |
| Ralph Clark | Son | — | 10 | ~1930 |
Census Appearances
1930
Marion, Indiana
Other, age
Marion, Indiana · implied b. ~1930 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Ralph J |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 10
Marion-County, Indiana · implied b. ~1930 — 8 household members
| Surname | Clark |
| Given Name | Ralph J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Highest Grade | 4 |
| 1935 Residence | Same House |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ralph Clark
Son · 1940 · age 10 · b. ~1930 · Indiana
★ You are viewing this record
Sibling
Carl Clark
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Clark
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Clark
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Clark
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gene Clark
Sibling · 1940 · age 5
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 — 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-t0627-01128-00221)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rockford Prichard | 51 | Head | Watchman | Indiana |
| 2 | Goldie Prichard | 47 | Wife | — | Indiana |
| 3 | Coleen Prichard | 20 | Daughter | Clerk | Indiana |
| 4 | Norma Jean Prichard | 15 | Daughter | — | Indiana |
| 5 | James Mcclelland | 60 | Head | Carpenter Foreman | Indiana |
| 6 | Maggie Mcclelland | 57 | Wife | — | Indiana |
| 7 | Louis Mckay | 71 | Head | Labor | Indiana |
| 8 | Theresa Mckay | 83 | Mother | — | Indiana |
| 9 | Benj Ware | 40 | Head | Carpenter | Indiana |
| 10 | Marie Ware | 36 | Wife | — | Indiana |
| 11 | James Ware | 13 | Son | — | Indiana |
| 12 | Phyllis Ware | 11 | Daughter | — | Indiana |
| 13 | William Ware | 9 | Son | — | Indiana |
| 14 | Arthur Bruner | 55 | Head | Salesman | Illinois |
| 15 | Minnie E Bruner | 55 | Wife | — | Indiana |
| 16 | James W Beck | 66 | Head | Section Foreman | Indiana |
| 17 | Ida Beck | 54 | Wife | — | Kentucky |
| 18 | William Ward | 26 | Head | Laborer | Kentucky |
| 19 | Lois Ward | 24 | Wife | — | Kentucky |
| 20 | Robert Ward | 3 | Son | — | Indiana |
| 21 | William Jr Ward | 1 | Son | — | Indiana |
| 22 | Ray Savage | 15 | Brother-in-law | — | Kentucky |
| 23 | John A Kautner | 77 | Head | — | Indiana |
| 24 | Emma J Kautner | 72 | Wife | — | Indiana |
| 25 | John D Rushton | 52 | Head | Barber | Indiana |
| 26 | Annie Rushton | 51 | Wife | — | Kentucky |
| 27 | Eugene Finchum | 15 | Grand-son | — | Indiana |
| 28 | Burton Clark | 35 | Head | Laborer | Indiana |
| 29 | Ethel Clark | 36 | Wife | — | Indiana |
| 30 | Eugene Clark | 18 | Son | Laborer | Indiana |
| 31 | Edward Clark | 16 | Son | — | Indiana |
| 32 | Betty Clark | 13 | Daughter | — | Indiana |
| 33 | Ralph J Clark THIS PERSON | 10 | Son | — | Indiana |
| 34 | Carl Clark | 9 | Son | — | Indiana |
| 35 | Gene Clark | 5 | Son | — | Indiana |
| 36 | Walter Tomlinson | 69 | Head | Janitor | Indiana |
| 37 | Mae Davis | 54 | Housekeeper | Housework | Indiana |
| 38 | George R Amber | 64 | Head | Carpenter | Indiana |
| 39 | Katherine Powers | 60 | Housekeeper | Housework | Indiana |
| 40 | John Bush | 40 | Lodger | Laborer | Indiana |
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)