RA
Robert Adams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Robert Adams across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Frank & John — first a son (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Adams |
| Given Name | Robert D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indpls. |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Ice truck |
| Industry | Own business |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Ice Truck |
| Township / Ward | Indpls |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Constance Adams | Daughter | — | 19 | ~1921 |
| Frank Adams | Head | — | 50 | ~1890 |
| Jerry Adams | Other | — | ~1940 | |
| Elvin Adams | Son | — | 4 | ~1936 |
| Robert Adams | Son | — | 23 | ~1917 |
| Kathryn Adams | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Marion, Indiana
Son, age 1
Marion, Indiana · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 11
Marion, Indiana · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Adams |
| Given Name | Robert G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 23
Marion-County, Indiana · implied b. ~1917 — 6 household members
| Surname | Adams |
| Given Name | Robert D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indpls. |
| 1935 Residence (County) | Marion |
| Occupation | Ice truck |
| Industry | Own business |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H-3 |
| 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 Robert Adams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Adams (~0.92 confidence) and father John Adams (~0.92 confidence) and father John Adams (~0.92 confidence) and mother Kathryn Adams (~0.92 confidence) and mother Grace Adams (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Adams
b. ~1890
Source father
● Household
· direct · ~0.92
Father
John Adams
b. ~1894
Source father
● Household
· direct · ~0.92
Father
John Adams
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Kathryn Adams
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Grace Adams
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Adams
Son · 1940 · age 23 · b. ~1917 · Indiana
★ You are viewing this record
Sibling
Constance Adams
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elvin Adams
Sibling · 1940 · age 4
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-t0627-01129-00198)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Baudendistel | 25 | Sister | Housekeeper | Indiana |
| 42 | Wm. H. Baudendistel | 23 | Brother | Clerk | Indiana |
| 43 | Lorraine Baudendistel | 17 | Sister | Stenographer | Indiana |
| 44 | Francis A. Joseph | 44 | Head | Machinist Helper | Iowa |
| 45 | Lena O. Joseph | 51 | Wife | — | Indiana |
| 46 | Nina Mae Joseph | 18 | Daughter | — | Indiana |
| 47 | Dorothy Joseph | 16 | Daughter | — | Indiana |
| 48 | John W. Hunter | 58 | Head | Carpenter | Tennessee |
| 49 | Theresa D. Hunter | 54 | Wife | — | Illinois |
| 50 | Gilbert O. Mccarty | 53 | Head | Salesman | Indiana |
| 51 | Leone Mccarty | 53 | Wife | — | Indiana |
| 52 | Abe Mabee | 58 | Lodger | Conductor | Indiana |
| 53 | Robert L. Goodwin | 29 | Head | Salesman | Indiana |
| 54 | Iris A. Goodwin | 28 | Wife | Clerk | Indiana |
| 55 | Lois Jane Goodwin | 2 | Daughter | — | Indiana |
| 56 | Lilian E. Thomas Goodwin | 0 | Daughter | — | Indiana |
| 57 | John O. Jones | 28 | Head | Shipping Clerk | Illinois |
| 58 | Mary Jones | 25 | Wife | — | Illinois |
| 59 | Richard Walsh | 50 | Head | Ice Truck | Tennessee |
| 60 | Jessie O. Walsh | 35 | Wife | Factory Worker | Tennessee |
| 61 | Frank C. Adams | 50 | Head | Shipping Clerk | Indiana |
| 62 | Kathryn O. Adams | 45 | Wife | — | Indiana |
| 63 | Elvin C. Adams | 4 | Son | — | Indiana |
| 64 | Robert D. Adams THIS PERSON | 23 | Son | Ice Truck | Indiana |
| 65 | Constance Adams | 19 | Daughter | — | Indiana |
| 66 | Jerry Lee Adams | 0 | Grandson | — | Indiana |
| 67 | Albert E. Reichner | 40 | Head | Engine Dis. | Minnesota |
| 68 | Genevieve Reichner | 32 | Wife | — | Illinois |
| 69 | Ross B. Hubbard | 56 | Head | Telegraph Op'R | Indiana |
| 70 | Lulu D. Hubbard | 54 | Wife | — | Indiana |
| 71 | Walter Brown | 36 | Head | Assembler | Indiana |
| 72 | Mildred Brown | 24 | Wife | Biller | Indiana |
| 73 | Alfred Laurimore | 64 | Head | Asst. Foreman | Indiana |
| 74 | Sarah Laurimore | 65 | Wife | — | Illinois |
| 75 | William Hobble | 43 | Head | Brakeman | Indiana |
| 76 | Ethel Hobble | 22 | Wife | — | Indiana |
| 77 | Florence Hobble | 65 | Mother | — | Indiana |
| 78 | Woodrow Skirvin | 24 | Head | Machinist | Kentucky |
| 79 | Leona Skirvin | 24 | Wife | — | N. Carolina |
| 80 | Fred Knight | 63 | Head | Boiler Maker | Tenn. |
Pedigree Summary
Robert + 2 siblings
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)